title: Dropped head as the presenting symptom of primary hyperparathyroidism.
authors.forename: Roy
authors.initials: R
authors.lastname: Beekman
authors.forename: Cees C
authors.initials: CC
authors.lastname: Tijssen
authors.forename: Leo H
authors.initials: LH
authors.lastname: Visser
authors.forename: Ronald L L A
authors.initials: RL
authors.lastname: Schellens
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D006257:Head; D006801:Humans; D006961:Hyperparathyroidism / Q000175:diagnosis* / Q000503:physiopathology; D008297:Male; D009135:Muscular Diseases / Q000175:diagnosis / Q000503:physiopathology; D011187:Posture / Q000502:physiology