Empiric recurrence risks for congenital hydrocephalus.
D003616:Dandy-Walker Syndrome / Q000235:genetics; D004200:Diseases in Twins; D005260:Female; D005817:Genetic Counseling; D006801:Humans; D006849:Hydrocephalus / Q000453:epidemiology / Q000209:etiology / Q000235:genetics*; D007231:Infant, Newborn; D008297:Male; D012306:Risk