00451nas a2200169   4500000000100000000000100001008004100002100001700043700001600060700002100076700001400097700001600111245010400127300001100231490000700242022003200249       2000                            d1 aR. Lawrenson1 aJ. Wyndaele1 aI. Vlachonikolis1 aC. Farmer1 aS. Glickman00aA UK general practice database study of prevalence and mortality of people with neural tube defects  a627-300 v14  a0269-2155 (Print) 0269-2155