JOURNAL OF POSTGRADUATES OF MEDICINE, Volume 27, Issue 15,2004, Pages 27-29, doi:10.3760/cma.j.issn.1673-4904.2004.15.011
JOURNAL OF POSTGRADUATES OF MEDICINE, Volume 27, Issue 15,2004, Pages 50-51, doi:10.3760/cma.j.issn.1673-4904.2004.15.022
JOURNAL OF POSTGRADUATES OF MEDICINE, Volume 27, Issue 15,2004, Pages 52-54, doi:10.3760/cma.j.issn.1673-4904.2004.15.023
JOURNAL OF POSTGRADUATES OF MEDICINE, Volume 27, Issue 15,2004, Pages 49-49, doi:10.3760/cma.j.issn.1673-4904.2004.15.021