NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 36,2007, Pages 2521-2525, doi:10.3760/j.issn:0376-2491.2007.36.001
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 36,2007, Pages 2581-2582, doi:10.3760/j.issn:0376-2491.2007.36.018
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 36,2007, Pages 2534-2536, doi:10.3760/j.issn:0376-2491.2007.36.004
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 36,2007, Pages 2544-2546, doi:10.3760/j.issn:0376-2491.2007.36.007
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 36,2007, Pages 2561-2563, doi:10.3760/j.issn:0376-2491.2007.36.012