共 14 条
[12]
SEIGEL A, 1962, AM J SURG, V103, P613
[13]
TANG CK, 1978, AM J OBSTET GYNECOL, V131, P912, DOI 10.1016/S0002-9378(16)33146-5
[14]
THOMPSON P, 1968, P ROY SOC MED, V71, P180