共 31 条
- [13] GREISS FC, 1971, AM J OBSTET GYNECOL, V111, P611
- [14] Harbert G M Jr, 1966, Surg Forum, V17, P390
- [16] HIGGINS C, 1970, CIRCULATION, V42, P123
- [17] HODR J, 1967, INTRAUTERINE DANGERS, P445
- [18] KARIM S M M, 1970, Journal of Obstetrics and Gynaecology of the British Commonwealth, V77, P200
- [19] KARIM SMM, 1971, J OBSTET GYN BR COMM, V78, P172