共 5 条
[2]
[3]
FREDLUND P, 1967, Acta Chirurgica Scandinavica, V133, P501
[4]
USHER FC, 1970, SURG GYNECOL OBSTETR, V131, P525
[5]
USHER FC, 1961, ARCH SURG-CHICAGO, V82, P108

