[Current situation on primary prevention measures to neural tube defects].
Gong
Rui
R
Department of Epidemiology and Health Statistics, Shandong University, Jinan, China.
Wang
Zhi-ping
ZP
Zhao
Zhong-tang
ZT
D006801:Humans; D009436:Neural Tube Defects / Q000517:prevention & control*; D011322:Primary Prevention