TY - JOUR TI - Surgical Diseases of Anus and Anal Canal: Pain Caused by Anal Fissure AU - Georgoulis, B. JO - Journal of the Royal Society of Medicine PY - 1969 VL - 62 TODO - 3 SP - 260 PB - SN - 0141-0768 TODO - 10.1177/003591576906200328 TODO - null TODO - null ER -