CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 10, Issue 1,2007, Pages 19-23, doi:10.3760/cma.j.issn.1007-9408.2007.01.006
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 10, Issue 1,2007, Pages 24-28, doi:10.3760/cma.j.issn.1007-9408.2007.01.007
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 10, Issue 1,2007, Pages 1, doi:10.3760/cma.j.issn.1007-9408.2007.01.001
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 10, Issue 1,2007, Pages 2-5, doi:10.3760/cma.j.issn.1007-9408.2007.01.002
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 10, Issue 1,2007, Pages 64-65,