CHINESE JOURNAL OF PEDIATRICS, Volume 38, Issue 8,2000, , doi:10.3760/cma.j.issn.0578-1310.2000.08.109
CHINESE JOURNAL OF PEDIATRICS, Volume 38, Issue 8,2000, , doi:10.3760/cma.j.issn.0578-1310.2000.08.120
CHINESE JOURNAL OF PEDIATRICS, Volume 38, Issue 8,2000, , doi:10.3760/cma.j.issn.0578-1310.2000.08.102
CHINESE JOURNAL OF PEDIATRICS, Volume 38, Issue 8,2000, , doi:10.3760/cma.j.issn.0578-1310.2000.08.118
CHINESE JOURNAL OF PEDIATRICS, Volume 38, Issue 8,2000, , doi:10.3760/cma.j.issn.0578-1310.2000.08.122