CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 13, Issue 4,2010, Pages 314-317, doi:10.3760/cma.j.issn.1007-9408.2010.04.012
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 13, Issue 4,2010, Pages 307-313, doi:10.3760/cma.j.issn.1007-9408.2010.04.011
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 13, Issue 4,2010, Pages 286-289, doi:10.3760/cma.j.issn.1007-9408.2010.04.006
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 13, Issue 4,2010, Pages 329-330, doi:10.3760/cma.j.issn.1007-9408.2010.04.016
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 13, Issue 4,2010, Pages 333-335, doi:10.3760/cma.j.issn.1007-9408.2010.04.018