5Ramesh K. Khurana MD. Cholinergic dysfunction in Shy—Drager syndrome: Effect of the parasympathomimetic agent, bethanechol[J] 1994,Clinical Autonomic Research(1-2):5～13
6Paola Sandroni MD,J. Eric Ahlskog MD,Robert D. Fealey MD,Phillip A. Low MD. Autonomic involvement in extrapyramidal and cerebellar disorders[J] 1991,Clinical Autonomic Research(2):147～155
