NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 35,2007, Pages 2494-2498, doi:10.3760/j.issn:0376-2491.2007.35.012
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 35,2007, Pages 2475, doi:10.3760/j.issn:0376-2491.2007.35.020
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 35,2007, Pages 2515-2517, doi:10.3760/j.issn:0376-2491.2007.35.018
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 35,2007, Pages 2463-2467, doi:10.3760/j.issn:0376-2491.2007.35.005
NATIONAL MEDICAL JOURNAL OF CHINA, Volume 87, Issue 35,2007, Pages 2449-2451, doi:10.3760/j.issn:0376-2491.2007.35.001