JOURNAL OF CLINICAL SURGERY, Volume 10, Issue z1,2002, Pages 153-154, doi:10.3969/j.issn.1005-6483.2002.z1.111
YUNNAN JOURNAL OF ANIMAL SCIENCE AND VETERINARY MEDICINE, , Issue z1,2002, Pages 35-36, doi:10.3969/j.issn.1005-1341.2002.z1.017
CHINESE JOURNAL OF FAMILY PLANNING, Volume 10, Issue z1,2002, Pages 58-60, doi:10.3969/j.issn.1004-8189.2002.z1.035
JOURNAL OF CHINESE PHYSICIAN, , Issue z1,2002, Pages 292, doi:10.3760/cma.j.issn.1008-1372.2002.z1.243