MILLS, JL, SIMPSON, JL, RHOADS, GG
et al. (1990). RISK OF NEURAL-TUBE DEFECTS IN RELATION TO MATERNAL FERTILITY AND FERTILITY DRUG-USE
.
LANCET, 336(8707), 103-104. 10.1016/0140-6736(90)91608-D
MILLS, JL, SIMPSON, JL, RHOADS, GG et al. (1990). RISK OF NEURAL-TUBE DEFECTS IN RELATION TO MATERNAL FERTILITY AND FERTILITY DRUG-USE
. LANCET, 336(8707), 103-104. 10.1016/0140-6736(90)91608-D