00468nas a2200193   4500000000100000000000100001008004100002100001400043700001200057700001500069700001400084700001300098700001300111700001400124245010400138300001100242490000700253022001400260       2008                            d1 aS. Devine1 aS. West1 aE. Andrews1 aP. Tennis1 aS. Eaton1 aJ. Thorp1 aA. Olshan00aValidation of neural tube defects in the full featured\textendashgeneral practice research database  a434-440 v17  a1053-8569