The ASCRS Manual of Colon and Rectal Surgery David E. Beck, Steven D. Wexner, Tracy L. Hull E-Book (pdf)

Gordon and Nivatvongs' Principles and Practice of Surgery for the Colon, Rectum, and Anus David E. Beck, Steven D. Wexner, Janice F. Rafferty E-Book (pdf)

Gordon and Nivatvongs' Principles and Practice of Surgery for the Colon, Rectum, and Anus David E. Beck, Steven D. Wexner, Janice F. Rafferty E-Book (epub)