共 16 条
[1]
BEGUM R, 1968, LANCET, V1, P1048
[3]
COHEN HJ, 1970, PEDIATRICS, V46, P737
[7]
LIPSITZ PJ, 1971, PEDIATRICS, V47, P501
[9]
PITT MJ, 1981, RADIOL CLIN N AM, V19, P581
[10]
PURVIS RJ, 1973, LANCET, V2, P811