NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 10,2004, Pages 826-829, doi:10.3760/j:issn:0376-2491.2004.10.009
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 10,2004, Pages 818-821, doi:10.3760/j:issn:0376-2491.2004.10.007
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 10,2004, Pages 833-835, doi:10.3760/j:issn:0376-2491.2004.10.011
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 10,2004, Pages 866-867, doi:10.3760/j:issn:0376-2491.2004.10.020
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 84, Issue 10,2004, Pages 803-807, doi:10.3760/j:issn:0376-2491.2004.10.004