Diseases of the colon & rectum.
American Society of Colon and Rectal Surgeons.
American Proctologic Society.
Philadelphia : J.B. Lippincott,
Excerpta medica
Index medicus
Biological abstracts
Cumulative index to nursing & allied health literature
Energy research abstracts
Life sciences collection
Published    -    by the American Proctologic Society;    -official journal of the American Society of Colon and Rectal Surgeons.
Colonic Diseases
Proctology