Folic acid deficiency in Thailand.
D002648:Child; D005260:Female; D005494:Folic Acid Deficiency / Q000097:blood / Q000150:complications / Q000453:epidemiology*; D006801:Humans; D007231:Infant, Newborn; D011159:Population Surveillance; D011247:Pregnancy; D012307:Risk Factors; D013785:Thailand / Q000453:epidemiology