共 24 条
[2]
BENNETT JP, 1967, POSTGRAD MED J, VS, P39
[6]
CHANG MC, 1961, 4 P INT C AN REPR HA, P367
[7]
Davajan V., 1970, OBSRER GYNRC SURVEY, V25, P1, DOI [10.1097/00006254-197001000-00002, DOI 10.1097/00006254-197001000-00002]