Project supported by the National Natural Science Foundation of China (Nos. 40471111 and 70571076);the Ministry of Science and Technology of China (No. 2001CB5103)
Objective: To estimate the prevalence rates of neural tube defects (NTDs) in Heshun County, Shanxi Province, China by Bayesian smoothing technique. Methods: A total of 80 infants in the study area who were diagnosed w...