[Experience in the prevention of blindness in Ninghe county of Tianjin municipality].
Wang
S H
SH
D001766:Blindness / Q000209:etiology / Q000517:prevention & control*; D002386:Cataract / Q000150:complications; D002681:China; D005260:Female; D005901:Glaucoma / Q000150:complications; D006801:Humans; D008297:Male