This is an abstract of material translated by the U.S. Joint Publications Research Service, 205 East 42nd Street. Suite 300, New York 17, New York. The original article was written by Shang Te-yen of the Chinese Academy of Medical Sciences and Hsieh Jung of Peiping Medical College, and appeared in Chung-hua Wai-k'o Tsa-chih (Chinese Journal of Surgery) Vol. 7, No. 9, 1959, pp. 848–855).