CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 10, Issue 2,2007, Pages 73-75, doi:10.3760/cma.j.issn.1007-9408.2007.02.001
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 10, Issue 2,2007, Pages 119-120, doi:10.3760/cma.j.issn.1007-9408.2007.02.016
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 10, Issue 2,2007, Pages 85-87,插图2-1, doi:10.3760/cma.j.issn.1007-9408.2007.02.004
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 10, Issue 2,2007, Pages 100-103,插图2-2, doi:10.3760/cma.j.issn.1007-9408.2007.02.008
CHINESE JOURNAL OF PERINATAL MEDICINE, Volume 10, Issue 2,2007, Pages 142, doi:10.3760/cma.j.issn.1007-9408.2007.02.028