CHINESE JOURNAL OF COLOPROCTOLOGY, Volume 21, Issue 12,2001, Pages 27, doi:10.3969/j.issn.1000-1174.2001.12.014
MEDICAL JOURNAL OF THE CHINESE PEOPLE'S ARMED POLICE FORCES, Volume 12, Issue 12,2001, Pages 724, doi:10.3969/j.issn.1004-3594.2001.12.008
CHINESE JOURNAL OF HOSPITAL PHARMACY, Volume 21, Issue 12,2001, Pages 721-723, doi:10.3321/j.issn:1001-5213.2001.12.008
ZHEJIANG JOURNAL OF PREVENTIVE MEDICINE, Volume 13, Issue 12,2001, Pages 45-45, doi:10.3969/j.issn.1007-0931.2001.12.038