TY - STAND AU - S. Devine AU - S. West AU - E. Andrews AU - P. Tennis AU - S. Eaton AU - J. Thorp AU - A. Olshan BT - Pharmacoepidemiol Drug Saf DO - 10.1002/pds.1573 M1 - 5 PY - 2008 SP - 434 EP - 44 T2 - Pharmacoepidemiol Drug Saf TI - Validation of neural tube defects in the full featured\textendashgeneral practice research database VL - 17 SN - 1053-8569 ER -