title: Letter: Determinants of ascorbic acid levels.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001205:Ascorbic Acid / Q000008:administration & dosage / Q000097:blood* / Q000378:metabolism / Q000627:therapeutic use; D002648:Child; D004912:Erythrocytes / Q000378:metabolism; D005260:Female; D006801:Humans; D008297:Male; D012141:Respiratory Tract Infections / Q000517:prevention & control; D013997:Time Factors
chemical_list: D001205:Ascorbic Acid