INTERNATIONAL MEDICINE & HEALTH GUIDANCE NEWS, Volume 10, Issue 22,2004, Pages 89-90, doi:10.3760/cma.j.issn.1007-1245.2004.22.054
CHINESE GENERAL PRACTICE, Volume 7, Issue 22,2004, Pages 1678, doi:10.3969/j.issn.1007-9572.2004.22.053
JOURNAL OF THE FOURTH MILITARY MEDICAL UNIVERSITY, Volume 25, Issue 22,2004, Pages 2112-2112, doi:10.3321/j.issn:1000-2790.2004.22.037