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CUNY Graduate School of Public Health and Health Policy, New York, New York, USA
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Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, USA
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effect of unconjugated estrone concentrations on estradiol immunoassay interference, we determined analytical bias relative to liquid chromatography tandem mass spectrometry (LC-MS/MS) in three estradiol commercial immunoassays among transgender women
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mass spectrometry (LC-MS/MS), which is free from numerous limitations of CLIA and other immunoassays, remains the gold standard for 25(OH)D testing ( 28 ). It also offers an additional benefit, i.e. the possibility of determining other vitamin D
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were routinely archived and kept frozen at −20°C in our laboratory. The archived serum samples were retrieved and assayed for serum 25(OH)D concentration using liquid chromatography-mass spectrometry (LC-MS) at the Guangzhou KingMed Centre for Clinical
eXtraOrdinarY Kids Clinic, Children's Hospital Colorado, Aurora, Colorado, USA
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analysis via ultra-high-pressure liquid chromatography coupled to mass spectrometry on a Thermo Vanquish UHPLC–Thermo Q Exactive MS system. Compound identification was based on intact mass, 13 C isotope pattern, and retention times from an in
International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
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International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
Section of Biostatistics, University of Copenhagen, Copenhagen, Denmark
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International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
Department of Fertility, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
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International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
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International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
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International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
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International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
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International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
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International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
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International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
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Growth and Reproduction, Rigshospitalet, Copenhagen, Denmark, had non-mosaic 47,XXY KS and had undergone whole-body DXA and/or had minimum one serum concentration of testosterone determined by liquid chromatography-tandem mass spectrometry (LC
Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, Bologna, Italy
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Unit of Gynecology and Obstetrics, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Italy
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Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, Bologna, Italy
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Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, Bologna, Italy
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Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, Bologna, Italy
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Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, Bologna, Italy
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Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, Bologna, Italy
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Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, Bologna, Italy
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Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele, Rome, Italy
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Medical Department Pronokal Group, Barcelona, Spain
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Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, Bologna, Italy
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Unit of Gynecology and Obstetrics, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Italy
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Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, Bologna, Italy
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Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, Bologna, Italy
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OH-progesterone, and progesterone) by liquid chromatography-tandem mass spectrometry (LC-MS/MS), at the Center for Applied Biomedical Research of the University of Bologna, S. Orsola Hospital. The same day, a medical examination was made, during
Department of Epidemiology, Erasmus University Medical Center, Rotterdam, the Netherlands
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Department of Epidemiology, Erasmus University Medical Center, Rotterdam, the Netherlands
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Department of Epidemiology, Erasmus University Medical Center, Rotterdam, the Netherlands
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methods for measuring serum testosterone were reported, including enzyme immunoassay (ELISA), liquid chromatography-tandem mass spectrometry, and radioimmunoassay (RIA) techniques. Serum DHEAS was measured by using chemiluminescent enzyme immunoassay or
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investigation of these associations in a prospective design. RIA technique has been considered a less reliable measurement method of testosterone levels compared to mass spectrometry, especially at lower levels ( 40 ). This could affect the precision and
K.G. Jebsen Center for Autoimmune Disorders, University of Bergen, Bergen, Norway
Department of Medicine, Haukeland University Hospital, Bergen, Norway
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Department of Gynecology and Obstetrics, Haukeland University Hospital, Bergen, Norway
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K.G. Jebsen Center for Autoimmune Disorders, University of Bergen, Bergen, Norway
Department of Medicine, Haukeland University Hospital, Bergen, Norway
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Department of Endocrinology, Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden
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Department of Sleep, Landspitali University Hospital Reykjavík, Reykjavik, Iceland
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Allergy and Lung Health Unit, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia
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The National Research Center for the Working Environment, Copenhagen, Denmark
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K.G. Jebsen Center for Autoimmune Disorders, University of Bergen, Bergen, Norway
Department of Medicine, Haukeland University Hospital, Bergen, Norway
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-tandem mass spectrometry (LC-MS/MS) at the Core Facility for Metabolomics (University of Bergen, Norway, 2017) ( 34 ). Concentrations below the lower limit of quantification (LLQ) for 17β-estradiol (3.6 pmol/L), estrone (2.1 pmol/L), testosterone (106 pmol
Department of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
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International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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(LH), AMH, and inhibin B were measured. Total testosterone, DHEAS, 17-OHP, and 4A were measured by liquid chromatography-tandem mass spectrometry (LC-MS/MS) with inter-assay coefficients of variation (CVs) ranging from 1.4 to 2.5%, as previously