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Federica Saponaro Department of Surgical, Medical, Molecular and Critical Area Pathology, Laboratory of Biochemistry, University of Pisa, Pisa, Italy
Endocrinology Unit 2, University of Pisa, Pisa, Italy

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Alessandro Saba Department of Surgical, Medical, Molecular and Critical Area Pathology, Laboratory of Biochemistry, University of Pisa, Pisa, Italy
Laboratory of Clinical Pathology, University Hospital of Pisa, Pisa, Italy

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Sabina Frascarelli Department of Surgical, Medical, Molecular and Critical Area Pathology, Laboratory of Biochemistry, University of Pisa, Pisa, Italy

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Concetta Prontera Fondazione Toscana Gabriele Monasterio, Pisa, Italy

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Aldo Clerico Fondazione Toscana Gabriele Monasterio, Pisa, Italy

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Marco Scalese Institute of Clinical Physiology, National Council of Research, Pisa, Italy

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Maria Rita Sessa Laboratory of Endocrinology, University Hospital of Pisa, Pisa, Italy

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Filomena Cetani Endocrinology Unit 2, University of Pisa, Pisa, Italy

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Simona Borsari Endocrinology Unit 2, University of Pisa, Pisa, Italy

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Elena Pardi Endocrinology Unit 2, University of Pisa, Pisa, Italy

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Antonella Marvelli Department of Translational Research and of New Surgical and Medical Technologies, University of Pisa, Pisa, Italy

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Claudio Marcocci Endocrinology Unit 2, University of Pisa, Pisa, Italy

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Claudio Passino Fondazione Toscana Gabriele Monasterio, Pisa, Italy

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Riccardo Zucchi Department of Surgical, Medical, Molecular and Critical Area Pathology, Laboratory of Biochemistry, University of Pisa, Pisa, Italy

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measurement. To achieve a good performance, laboratories are required to have 75% of assessable results within ±25% of the true values from DEQAS. The accurate measurement of 25 hydroxyvitamin D3 (25OHD3) status was carried out by isotope dilution mass

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Maria Luisa Brandi Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
Fondazione Italiana Ricerca sulle Malattie dell’Osso (FIRMO Onlus), Florence, Italy

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Stefania Bandinelli Geriatric Unit, Azienda Sanitaria Toscana Centro, Florence, Italy

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Teresa Iantomasi Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy

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Francesca Giusti Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy

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Eleonora Talluri Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy

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Giovanna Sini Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy

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Fabrizio Nannipieri Clinical Research, Abiogen Pharma, Pisa, Italy

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Santina Battaglia Clinical Research, Abiogen Pharma, Pisa, Italy

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Riccardo Giusti Clinical Research, Abiogen Pharma, Pisa, Italy

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Colin Gerard Egan CE Medical Writing SRLS, Pisa, Italy

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Luigi Ferrucci Longitudinal Study Section, Translation Gerontology Branch, National Institute on Aging, Baltimore, Maryland, USA

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to a reference procedure (isotope dilution mass spectrometry) and automatized on a Cobas 8000. Serum VDBP was measured by enzyme-linked immuno assay method (R&D Systems). BPA analysis was performed on urine samples using the HPLC/mass spectrometry by

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Vickie Braithwaite Medical Research Council (MRC) Human Nutrition Research, MRC Keneba, Elsie Widdowson Laboratories, Fulbourn Road, Cambridge CB1 9NL, UK

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Kerry S Jones Medical Research Council (MRC) Human Nutrition Research, MRC Keneba, Elsie Widdowson Laboratories, Fulbourn Road, Cambridge CB1 9NL, UK
Medical Research Council (MRC) Human Nutrition Research, MRC Keneba, Elsie Widdowson Laboratories, Fulbourn Road, Cambridge CB1 9NL, UK

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Shima Assar Medical Research Council (MRC) Human Nutrition Research, MRC Keneba, Elsie Widdowson Laboratories, Fulbourn Road, Cambridge CB1 9NL, UK

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Inez Schoenmakers Medical Research Council (MRC) Human Nutrition Research, MRC Keneba, Elsie Widdowson Laboratories, Fulbourn Road, Cambridge CB1 9NL, UK

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Ann Prentice Medical Research Council (MRC) Human Nutrition Research, MRC Keneba, Elsie Widdowson Laboratories, Fulbourn Road, Cambridge CB1 9NL, UK
Medical Research Council (MRC) Human Nutrition Research, MRC Keneba, Elsie Widdowson Laboratories, Fulbourn Road, Cambridge CB1 9NL, UK

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status and intestinal integrity Two-day weighed dietary assessment was conducted using Gambian food composition tables (26) in the same way as described previously (13) . H. pylori infection was determined using a non-invasive stable isotope urea

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L Johnsen Department of Large Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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N B Lyckegaard Department of Large Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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P Khanal Department of Large Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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B Quistorff Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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K Raun Diabetes and Obesity Pharmacology, Novo Nordisk A/S, Måløv, Denmark

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M O Nielsen Department of Large Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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used for free ranging animals ( 29 , 30 , 31 , 32 ). The breath samples were used for measurement of the 13 C: 12 C isotope ratios (δ 13 C, ‰) using an IRIS (infrared isotope analyzer system, 13 C Wagner Analysen Technik GmbH, Bremen, Germany

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Ingeborg Brønstad Department of Clinical Science, Department of Medicine, Division of Medicine, University of Bergen, 5021 Bergen, Norway

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Lars Breivik Department of Clinical Science, Department of Medicine, Division of Medicine, University of Bergen, 5021 Bergen, Norway

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Paal Methlie Department of Clinical Science, Department of Medicine, Division of Medicine, University of Bergen, 5021 Bergen, Norway
Department of Clinical Science, Department of Medicine, Division of Medicine, University of Bergen, 5021 Bergen, Norway

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Anette S B Wolff Department of Clinical Science, Department of Medicine, Division of Medicine, University of Bergen, 5021 Bergen, Norway

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Eirik Bratland Department of Clinical Science, Department of Medicine, Division of Medicine, University of Bergen, 5021 Bergen, Norway

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Ingrid Nermoen Department of Clinical Science, Department of Medicine, Division of Medicine, University of Bergen, 5021 Bergen, Norway

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Kristian Løvås Department of Clinical Science, Department of Medicine, Division of Medicine, University of Bergen, 5021 Bergen, Norway
Department of Clinical Science, Department of Medicine, Division of Medicine, University of Bergen, 5021 Bergen, Norway

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Eystein S Husebye Department of Clinical Science, Department of Medicine, Division of Medicine, University of Bergen, 5021 Bergen, Norway
Department of Clinical Science, Department of Medicine, Division of Medicine, University of Bergen, 5021 Bergen, Norway

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molecular weight of wt 21OH (56 kDa) were cut out for trypsin treatment. Stable isotope-labelled synthetic peptides (N-terminal replacement of lysine ( 13 C 6 , 15 N 2 ) or arginine ( 13 C 6 , 15 N 4 ) respectively) were added in constant amount before

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Jesper Krogh Department of Endocrinology & Metabolism, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark

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Peter Plomgaard Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
Department of Clinical Biochemistry, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark

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Ruth Frikke-Schmidt Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
Department of Clinical Biochemistry, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark

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Sten Velschow Fluisense ApS, Lillerød, Denmark

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Jesper Johannesen Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
Department of Pediatrics, Copenhagen University Hospital - Herlev & Gentofte, Copenhagen, Denmark

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Linda Maria Hilsted Department of Clinical Biochemistry, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark

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Malene Schrøder Fluisense ApS, Lillerød, Denmark

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Ulla Feldt-Rasmussen Department of Endocrinology & Metabolism, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark

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-0564) using a Wallac DBS Puncher (PerkinElme). Cortisol was extracted from the DBS with 200 μL extraction solvent (acetonitrile/water: 80:20) containing the stable isotopically labeled cortisol-( 13 C3) internal standard (30 nmol/L) by vigorously mixing

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Kathrin R Frey Department of Medicine I, Endocrine and Diabetes Unit, University Hospital, University of Würzburg, Würzburg, Germany

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Tina Kienitz Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany

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Julia Schulz Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany

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Manfred Ventz Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany

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Kathrin Zopf Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany

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Marcus Quinkler Endocrinology in Charlottenburg, Berlin, Germany

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Winterer JC Loriaux DL . Daily cortisol production rate in man determuned by stable isotope dilution/mass spectrometry . Journal of Clinical Endocrinology and Metabolism 1991 72 39 – 45 . ( https://doi.org/10.1210/jcem-72-1-39 ) 10.1210/jcem-72

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Kjell Oberg Uppsala University, Uppsala, Sweden

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Eric Krenning Erasmus Medical Center, Rotterdam, Netherlands

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Anders Sundin Uppsala University, Uppsala, Sweden

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Lisa Bodei Memorial Sloan Kettering Cancer Center, New York, New York, USA

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Mark Kidd Wren Laboratories, Branford, Connecticut, USA

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Margot Tesselaar Netherlands Cancer Institute, Amsterdam, Netherlands

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Valentina Ambrosini University of Bologna, Bologna, Italy

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Richard P Baum Zentralklinik Bad Berka, Bad Berka, Germany

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Matthew Kulke Dana Farber Cancer Institute, Boston, Massachusetts, USA

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Marianne Pavel Charite Hospital, Berlin, Germany

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Jaroslaw Cwikla University of Warmia and Mazury, Olsztyn, Poland

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Ignat Drozdov Wren Laboratories, Branford, Connecticut, USA

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Massimo Falconi Ospedale San Raffaele, Milan, Italy

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Nicola Fazio IEO (European Institute of Oncology), Milan, Italy

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Andrea Frilling Imperial College London, London, UK

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Robert Jensen National Institutes of Health, Bethesda, Maryland, USA

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Klaus Koopmans Martini Ziekenhuis, Groningen, Netherlands

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Tiny Korse Netherlands Cancer Institute, Amsterdam, Netherlands

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Dik Kwekkeboom Erasmus Medical Center, Rotterdam, Netherlands

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Helmut Maecke University Hospital Freiburg, Freiburg, Germany

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Giovanni Paganelli Instituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori, Meldola, Italy

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Ramon Salazar Instituto Catala d’Oncologia, Barcelona, Spain

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Stefano Severi Instituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori, Meldola, Italy

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Jonathan Strosberg H. Lee Moffitt Cancer Center, Tampa, Florida, USA

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Vikas Prasad Charite Hospital, Berlin, Germany

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Aldo Scarpa University of Verona, Verona, Italy

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Ashley Grossman Univeristy of Oxford, Oxford, UK

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Annemeik Walenkamp University of Groningen, Groningen, Netherlands

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Mauro Cives H. Lee Moffitt Cancer Center, Tampa, Florida, USA

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Irene Virgolini Medical University Innsbruck, Innsbruck, Austria

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Andreas Kjaer Copenhagen University, Copenhagen, Denmark

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Irvin M Modlin Yale University, New Haven, Connecticut, USA

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-specific symptoms, as well as knowledge regarding the patient’s overall condition. However, they also decided that clinical knowledge alone was inadequate for predicting whether a NEN would be progressive or exhibit a stable disease. Although a wait-and-see strategy

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Kristian Almstrup Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Hanne Frederiksen Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Anna-Maria Andersson Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Anders Juul Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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to inclusion of more samples when using the mean of yearly dichotomized values, but it could also reflect a more general exposure and hence a more stable effect on the epigenome in contrast to same-day levels. Our study population was peri

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Lesley A Hill Departments of Cellular and Physiological Sciences and Obstetrics and Gynaecology, The University of British Columbia, Vancouver, British Columbia, Canada

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Zeynep Sumer-Bayraktar School of Life and Environmental Science, Charles Perkins Centre, The University of Sydney, Sydney, New South Wales, Australia

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John G Lewis Canterbury Health Laboratories, Christchurch, New Zealand

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Eva Morava Mayo Clinic, Department of Clinical Genomics, CIM, Rochester, Minnesota, USA

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Morten Thaysen-Andersen Department of Molecular Sciences, Macquarie University, Sydney, New South Wales, Australia

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Geoffrey L Hammond Departments of Cellular and Physiological Sciences and Obstetrics and Gynaecology, The University of British Columbia, Vancouver, British Columbia, Canada

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lines, Lec1 (ATCC CRL-1735) or Lec2 (ATCC CRL-1736), for recombinant protein expression ( 12 ). As previously observed ( 24 ), variability in the expression of CBG constructs in CHO cell lines is likely due to differences in the proportion of stably

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