CHINESE JOURNAL OF PEDIATRICS, Volume 36, Issue 4,1998, , doi:10.3760/cma.j.issn.0578-1310.1998.04.118
CHINESE JOURNAL OF PEDIATRICS, Volume 36, Issue 4,1998, , doi:10.3760/cma.j.issn.0578-1310.1998.04.119
CHINESE JOURNAL OF PEDIATRICS, Volume 36, Issue 4,1998, , doi:10.3760/cma.j.issn.0578-1310.1998.04.111
CHINESE JOURNAL OF PEDIATRICS, Volume 36, Issue 4,1998, , doi:10.3760/cma.j.issn.0578-1310.1998.04.121
CHINESE JOURNAL OF PEDIATRICS, Volume 36, Issue 4,1998, , doi:10.3760/cma.j.issn.0578-1310.1998.04.107