共 56 条
[1]
ANAND SK, 1982, PEDIATR CLIN N AM, V29, P791
[4]
BAETZGREENWALT B, 1988, PEDIATRICS, V81, P826
[5]
BERDON WE, 1977, RADIOL CLIN N AM, V15, P83
[6]
BERMAN LH, 1986, CLIN RADIOL, V40, P577
[7]
BLANE CE, 1985, AM J ROENTGENOL, V145, P1289, DOI 10.2214/ajr.145.6.1289
[10]
CAMPBELL S, 1973, J OBSTET GYN BR COMM, V80, P680