共 21 条
- [2] ACOSTASISON H, 1955, AM J OBSTET GYNECOL, V69, P442
- [4] BOYCOTT M, 1930, LANCET, V1, P1428
- [5] DELFS E, 1957, OBSTET GYNECOL, V9, P1
- [7] DJOJOPRANOTO M, 1960, MEDAN ILMU PENGETAHU, V1, P290
- [8] HERTIG AT, 1947, AM J OBSTET GYNECOL, V53, P1
- [9] HOBSON BM, 1953, T EDINBURGH OBST SOC, P33
- [10] NOVAK E, 1958, GYNECOLOGIC OBSTETRI