Anderson-Fabray Disease, A Commonly Missed DiagnosisBMJ 297:872-873, Morgan,S.H.&Crawfurd,M., 1988
A Case-Control Study of Smoking Habits, Dementia, & Other Illnesses in Idiopathic Parkinson's DiseaseNeurol 37:226-232, Rajput,A.H.,et al, 1987