FOREIGN MEDICAL SCIENCES, Volume 9, Issue 4,2001, Pages 225-226, doi:10.3760/cma.j.issn.1673-4165.2001.04.010
FOREIGN MEDICAL SCIENCES, Volume 9, Issue 4,2001, Pages 250-252, doi:10.3760/cma.j.issn.1673-4165.2001.04.020
FOREIGN MEDICAL SCIENCES, Volume 9, Issue 4,2001, Pages 196-202, doi:10.3760/cma.j.issn.1673-4165.2001.04.002