[Perineal ultrasonography of anal and low rectal illnesses - meaningful instrument in the clinical everyday life].
Simanowski
J H
JH
D001004:Anus Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D010502:Perineum / Q000000981:diagnostic imaging*; D012002:Rectal Diseases / Q000000981:diagnostic imaging*; D014463:Ultrasonography / Q000379:methods