title: [Investigation on the level of free erythrocyte protoporphyrin in a microsample of healthy people in the Shanghai area].
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D002681:China; D004912:Erythrocytes / Q000032:analysis*; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D011166:Porphyrins / Q000097:blood*; D011524:Protoporphyrins / Q000097:blood*; D012016:Reference Values; D012737:Sex Factors
chemical_list: D011166:Porphyrins; D011524:Protoporphyrins