共 7 条
[1]
CLARK DA, 1977, PEDIATRICS, V60, P457
[2]
FLEISHER B, 1985, OBSTET GYNECOL, V66, P327
[3]
JHAVERI MK, 1987, PEDIATRICS, V79, P1005
[4]
MATTHEWS TG, 1979, PEDIATRICS, V64, P30
[7]
TORDAY JS, 1981, AM REV RESPIR DIS, V123, P205