[Importance of arteriovenous anastomoses and cavernous structures of the rectum in the pathogenesis of hemorrhoids].
D001164:Arteriovenous Fistula / Q000473:pathology*; D006484:Hemorrhoids / Q000209:etiology / Q000473:pathology*; D006801:Humans; D012007:Rectum / Q000098:blood supply*
Znachenie arterio-venoznykh anastomozov i kavernoznykh struktur priamoĭ kishki v patogeneze gemorroia.