title: Factors that complicate the study of follicular variant of papillary thyroid cancer.
authors.affiliation: Endocrine Surgery Section, Johns Hopkins Medical Institutions, Baltimore, Maryland 21287, USA. mzeiger@jhmi.edu
authors.forename: Martha A
authors.initials: MA
authors.lastname: Zeiger
mesh_terms: D018265:Carcinoma, Papillary, Follicular / Q000145:classification / Q000473:pathology / Q000503:physiopathology; D006801:Humans; D013964:Thyroid Neoplasms / Q000145:classification / Q000473:pathology / Q000503:physiopathology