TY - GEN AU - Croen,L A AU - Shaw,G M AU - Lammer,E J TI - Risk factors for cytogenetically normal holoprosencephaly in California: a population-based case-control study SN - 0148-7299 PY - 2000///0414 KW - California KW - epidemiology KW - Case-Control Studies KW - Holoprosencephaly KW - Humans KW - Population Surveillance KW - Risk Factors N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S ER -