Orthostatic Hypotension with Brainstem Tumors
Neurol 34:1137-1143, Hsu,C.Y.,et al, 1984
Postural Hypotension:Adrenergic Responsivity, & Levodopa Therapy
Neurol 27:921, Corder,C.N.,et al, 1977
Syncope:Current Diagnostic Evaluation and Management
Ann Int Med 112:850-863, Manolis,A.S.,et al, 1990