Shunt Failure Caused by Valve Collapse
JNNP 54:559-560, Lundar,T.,et al, 1991
Variables Predicting Surgical Outcome in Symptomatic Hydrocephalus in the Elderly
Neurol 39:1601-1604, Graff-Radford,R.N.,et al, 1989
Surgical Treatment of Idiopathic Hydrocephalus in Elderly Patients
Neurol 35:307-311, Petersen,R.C.,et al, 1985
Living with Hydrocephalus
BMJ 288:813-814, Simpson,D., 1984