TY - BOOK AU - Boulos,Paul B. AU - Wexner,Steven D. TI - Challenges in colorectal surgery SN - 0702025593 PY - 2000/// CY - London PB - W. B. Saunders KW - Colorectal Surgery KW - Surgery, Colon KW - Proctological Surgery KW - Rectal Surgery ER -