title: Parasitism in an Ontario mental institution: preliminary report.
mesh_terms: D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D006778:Hospitals, Psychiatric; D006801:Humans; D007411:Intestinal Diseases, Parasitic / Q000453:epidemiology*; D008297:Male; D009864:Ontario