title: Long-term frozen sera for epidemiological studies of antibodies.
authors.forename: C P
authors.initials: CP
authors.lastname: Torfs
authors.forename: B J
authors.initials: BJ
authors.lastname: van der Berg
authors.forename: J L
authors.initials: JL
authors.lastname: Sever
authors.forename: M D
authors.initials: MD
authors.lastname: Okerlund
mesh_terms: D000293:Adolescent; D000328:Adult; D001323:Autoantibodies / Q000032:analysis*; D001793:Blood Preservation / Q000379:methods*; D005260:Female; D005615:Freezing; D006111:Graves Disease / Q000276:immunology; D006801:Humans; D011247:Pregnancy; D013961:Thyroid Gland / Q000276:immunology*; D013997:Time Factors
chemical_list: D001323:Autoantibodies