SHANDONG MEDICAL JOURNAL, Volume 43, Issue 22,2003, Pages 29, doi:10.3969/j.issn.1002-266X.2003.22.065
JOURNAL OF THE FOURTH MILITARY MEDICAL UNIVERSITY, Volume 24, Issue 22,2003, Pages 2094-2096, doi:10.3321/j.issn:1000-2790.2003.22.023
CHINESE JOURNAL OF PRACTICAL NURSING, Volume 19, Issue 22,2003, Pages 74-75, doi:10.3760/cma.j.issn.1672-7088.2003.22.054
CENTRAL PLAINS MEDICAL JOURNAL, Volume 30, Issue 22,2003, Pages 19-20, doi:10.3760/cma.j.issn.1674-4756.2003.22.016