Parkinsonism-Recognition and Differential Diagnosis
BMJ 310:447-452, Quinn,N., 1995
Involvement of Upper-Airway Muscles in Extrapyramidal Disorders
NEJM 311:438-442, Vincken,W.G.,et al, 1984
Granulomatous Inflammation of Mouth & Larynx, Consistent with Crohn's Disease, Case 35-1978
NEJM 299:538-544, Scully,R.E.,et al, 1978