CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 8, Issue 3,2005, Pages 192-194, doi:10.3760/cma.j.issn.1007-9408.2005.03.013
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 8, Issue 3,2005, Pages 171-174, doi:10.3760/cma.j.issn.1007-9408.2005.03.008
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 8, Issue 3,2005, Pages 202-203, doi:10.3760/cma.j.issn.1007-9408.2005.03.019
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 8, Issue 3,2005, Pages 199-200, doi:10.3760/cma.j.issn.1007-9408.2005.03.017
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 8, Issue 3,2005, Pages 160-164, doi:10.3760/cma.j.issn.1007-9408.2005.03.005