共 8 条
- [1] Corner George W., 1945, CONTRIB EM BRYOL [CARNEGIE INST WASHINGTON PUBL 557], V31, P117
- [2] Grafenberg E., 1929, GEBURTENREGELUNG VOR, P50
- [3] MARGULIES LC, 1963, P C INTRAUTERINE CON, P61
- [4] MARGULIES LC, 1963, P IUCD C NEW YORK, P111
- [7] TIETZE C, 1963, P IUCD C NEW YORK, P9
- [8] 1966, WHO332 TECH REP SER