共 13 条
- [2] BROWNE JCM, 1953, J OBST GYNAEC BRIT E, V60, P138
- [4] DIXON HG, 1963, LANCET, V2, P369
- [6] LASSEN NA, 1964, LANCET, V1, P686
- [8] MOORE PT, 1957, J OBSTET GYNAECOL, V64, P207
- [9] MORRIS N, 1955, LANCET, V1, P323
- [10] MUNCK O, 1964, REV FR ETUD CLIN BIO, V9, P750