CHINESE JOURNAL OF PEDIATRICS, Volume 36, Issue 9,1998, , doi:10.3760/cma.j.issn.0578-1310.1998.09.117
CHINESE JOURNAL OF PEDIATRICS, Volume 36, Issue 9,1998, , doi:10.3760/cma.j.issn.0578-1310.1998.09.112
CHINESE JOURNAL OF PEDIATRICS, Volume 36, Issue 9,1998, , doi:10.3760/cma.j.issn.0578-1310.1998.09.122
CHINESE JOURNAL OF PEDIATRICS, Volume 36, Issue 9,1998, , doi:10.3760/cma.j.issn.0578-1310.1998.09.119
CHINESE JOURNAL OF PEDIATRICS, Volume 36, Issue 9,1998, , doi:10.3760/cma.j.issn.0578-1310.1998.09.132