[On the etiological relationship between rectal carcinoma and an existing exterior rectal fistula recognized for 30 years as a medical care problem].
D006801:Humans; D012003:Rectal Fistula / Q000150:complications*; D012004:Rectal Neoplasms; D012007:Rectum
RECTAL FISTULA/complications; RECTUM/neoplasms