Ridding school children of parasites--a community approach.
D002648:Child; D002675:Child, Preschool; D003153:Community Health Services; D005260:Female; D005522:Food Services; D006266:Health Education; D006790:Host-Parasite Interactions; D006801:Humans; D007411:Intestinal Diseases, Parasitic / Q000517:prevention & control*; D008297:Male; D010879:Piperazines / Q000627:therapeutic use; D011647:Puerto Rico; D012572:School Health Services
D010879:Piperazines