title: Biotin interference in immunoassays mimicking subclinical Graves' disease and hyperestrogenism: a case series.
authors.affiliation: Clinical Laboratory, Hospital Israelita Albert Einstein, São Paulo.
authors.forename: Marcelo C
authors.initials: MC
authors.lastname: Batista
authors.affiliation: Clinical Laboratory, Hospital Israelita Albert Einstein, São Paulo.
authors.forename: Carlos E S
authors.initials: CES
authors.lastname: Ferreira
authors.affiliation: Clinical Laboratory, Hospital Israelita Albert Einstein, São Paulo.
authors.forename: Adriana C L
authors.initials: ACL
authors.lastname: Faulhaber
authors.affiliation: Department of Endocrinology, Hospital Israelita Albert Einstein, São Paulo.
authors.forename: Jairo T
authors.initials: JT
authors.lastname: Hidal
authors.affiliation: Clinical Laboratory, Hospital Israelita Albert Einstein, São Paulo.
authors.forename: Simão A
authors.initials: SA
authors.lastname: Lottenberg
authors.affiliation: Clinical Laboratory, Hospital Israelita Albert Einstein, São Paulo.
authors.forename: Cristóvão L P
authors.initials: CLP
authors.lastname: Mangueira
mesh_terms: D000328:Adult; D000368:Aged; D000906:Antibodies / Q000276:immunology / Q000378:metabolism; D001710:Biotin / Q000737:chemistry / Q000378:metabolism*; D003951:Diagnostic Errors; D019587:Dietary Supplements; D004958:Estradiol / Q000097:blood*; D005260:Female; D006111:Graves Disease / Q000175:diagnosis*; D006801:Humans; D007118:Immunoassay / Q000592:standards*; D008297:Male; D008875:Middle Aged; D011933:Reagent Kits, Diagnostic; D011989:Receptors, Thyrotropin / Q000276:immunology; D055815:Young Adult
chemical_list: D000906:Antibodies; D011933:Reagent Kits, Diagnostic; D011989:Receptors, Thyrotropin; D004958:Estradiol; D001710:Biotin
keywords: Graves’ disease; analytical interference; biotin; hyperestrogenism; immunoassay