Adenocareinoma of anal canal
Anal canal rectum disease
anal canal skin incise and drainge
Benign neoplasm of anus and anal canal
Carcinoma in situ anus and anal canal
Carcinoma of rectum and anal canal
Malignant neoplasm of anal canal
preservation of anal canal
sphincter of anal canal
Alimentary Canal Cancer
esophageal cancer and cardiac cancer
functional assessment of cancer therapy-ovarian cancer