CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 9, Issue 6,2006, Pages 396-399, doi:10.3760/cma.j.issn.1007-9408.2006.06.011
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 9, Issue 6,2006, Pages 363-364, doi:10.3760/cma.j.issn.1007-9408.2006.06.002
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 9, Issue 6,2006, Pages 364, doi:10.3760/cma.j.issn.1007-9408.2006.06.024
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 9, Issue 6,2006, Pages 373-376, doi:10.3760/cma.j.issn.1007-9408.2006.06.005
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 9, Issue 6,2006, Pages 426-427, doi:10.3760/cma.j.issn.1007-9408.2006.06.021