CHINESE JOURNAL OF CANCER PREVENTION AND TREATMENT, Volume 13, Issue 21,2006, Pages 1679-1680, doi:10.3969/j.issn.1673-5269.2006.21.027
HEALTH VOCATIONAL EDUCATION, Volume 24, Issue 21,2006, Pages 57-58, doi:10.3969/j.issn.1671-1246.2006.21.033
CHINESE GENERAL PRACTICE, Volume 9, Issue 21,2006, Pages 1809-1810, doi:10.3969/j.issn.1007-9572.2006.21.029
MODERN JOURNAL OF INTEGRATED TRADITIONAL CHINESE AND WESTERN MEDICINE, Volume 15, Issue 21,2006, Pages 2976-2976, doi:10.3969/j.issn.1008-8849.2006.21.087