title: Effect of deworming and vitamin A administration on serum vitamin A levels in preschool children.
mesh_terms: D001200:Ascaris; D002675:Child, Preschool; D002986:Clinical Trials as Topic; D003131:Combined Modality Therapy; D006801:Humans; D011897:Random Allocation; D014801:Vitamin A / Q000097:blood* / Q000627:therapeutic use; D014802:Vitamin A Deficiency / Q000188:drug therapy / Q000628:therapy*
chemical_list: D014801:Vitamin A