共 21 条
[1]
ANDRE FE, 1985, POSTGRAD MED J, V61, P113
[2]
ASANO Y, 1985, PEDIATRICS, V75, P667
[3]
BERNSTEIN HH, 1993, PEDIATRICS, V92, P833
[7]
DEAN AG, 1995, EPI INFO VERSION 6 0
[9]
HALL CB, 1995, PEDIATRICS, V95, P791