title: A simple apparatus for anal tonometry.
mesh_terms: D000293:Adolescent; D000328:Adult; D001003:Anal Canal / Q000502:physiology*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008365:Manometry / Q000295:instrumentation*; D011312:Pressure; D012016:Reference Values