共 10 条
[3]
FOWLIE F, 1986, J CAN ASSOC RADIOL, V37, P50
[4]
GUILAN BB, 1986, J CLIN ULTRASOUND, V14, P225
[6]
LEWIS E, 1982, J ULTRAS MED, V1, P265
[7]
SCHNEIDE.KM, 1965, PEDIATRICS, V36, P359
[8]
SILVERMAN FN, 1985, CAFFEYS PEDIATRIC XR, P1733