title: Blastocystis hominis infection presenting as recurrent diarrhea.
mesh_terms: D000328:Adult; D003967:Diarrhea / Q000188:drug therapy / Q000382:microbiology / Q000469:parasitology*; D056890:Eukaryota / Q000145:classification*; D005243:Feces / Q000382:microbiology / Q000469:parasitology; D005658:Fungi / Q000145:classification*; D006801:Humans; D008297:Male; D008795:Metronidazole / Q000627:therapeutic use; D011528:Protozoan Infections / Q000188:drug therapy / Q000503:physiopathology*; D012008:Recurrence
chemical_list: D008795:Metronidazole