title: Undetectable serum levels of thyrotropin (TSH) in an older woman with secondary hypothyroidism: a clinical observation.
authors.affiliation: Arizona Center on Aging, Tucson.
authors.forename: R L
authors.initials: RL
authors.lastname: Reed
authors.forename: J
authors.initials: J
authors.lastname: Kerwin
authors.forename: M T
authors.initials: MT
authors.lastname: Yoshino
authors.forename: A D
authors.initials: AD
authors.lastname: Mooradian
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007037:Hypothyroidism / Q000097:blood* / Q000209:etiology; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D010900:Pituitary Diseases / Q000150:complications; D013960:Thyroid Function Tests; D013972:Thyrotropin / Q000097:blood*
chemical_list: D013972:Thyrotropin