共 9 条
- [1] ABRAMSON M, 1936, J LANCET MINNEAPOLIS, V56, P446
- [2] Kopp M. E., 1934, BIRTH CONTROL PRACTI
- [3] NOTESTEIN FW, 1934, HUM BIOL, V6, P600
- [4] PEARL R, 1932, HUM BIOL, V4, P400
- [5] ROBISHAW R, 1936, AM J OBSTET GYNECOLO, V31
- [6] STONE H, 1933, MED J RECORD 0503
- [7] STONE HM, 1932, MATERNAL HLTH CONT 1
- [8] 1939, MILBANK MEMORIAL FUN, V17
- [9] 1937, J AM MED ASS, V108, P2217