Plasma vitamin-A and erythrocyte riboflavin in school children.
D000293:Adolescent; D002648:Child; D004912:Erythrocytes / Q000032:analysis*; D005260:Female; D006801:Humans; D008297:Male; D012256:Riboflavin / Q000097:blood*; D012257:Riboflavin Deficiency / Q000097:blood*; D014801:Vitamin A / Q000097:blood*; D014802:Vitamin A Deficiency / Q000097:blood*
D014801:Vitamin A; D012256:Riboflavin