LENGTH OF THE FERTILE PERIOD

[1] BEEBE GW, 1942, CONTRACEPTION FERTIL, P79

[2] BELONOSCHKIN B, 1959, INT J FERTILITY JAN, P7

[3] CARY WH, 1936, J AMER MED ASSOC, V106, P2222

[4] COHEN MR, 1951, FERTIL STERIL, V2, P20

[5] COHEN MR, 1950, FERTILITY STERILITY, V1, P170

[6] COLLETT ME, 1954, FERTIL STERIL, V5, P437

[7] CORNER G. W., 1950, AMER JOUR OBSTET AND GYNECOL, V59, P514

[8] CORNER GW, 1953, PREGNANCY WASTAGE, P3

[9] FARRIS, 1948, AM J OBSTETRICS GYNE, V56, P347

[10] FARRIS, 1946, AM J OBSTETRICS GYNE, V52, P14

[1] BEEBE GW, 1942, CONTRACEPTION FERTIL, P79

[2] BELONOSCHKIN B, 1959, INT J FERTILITY JAN, P7

[3] CARY WH, 1936, J AMER MED ASSOC, V106, P2222

[4] COHEN MR, 1951, FERTIL STERIL, V2, P20

[5] COHEN MR, 1950, FERTILITY STERILITY, V1, P170

[6] COLLETT ME, 1954, FERTIL STERIL, V5, P437

[7] CORNER G. W., 1950, AMER JOUR OBSTET AND GYNECOL, V59, P514

[8] CORNER GW, 1953, PREGNANCY WASTAGE, P3

[9] FARRIS, 1948, AM J OBSTETRICS GYNE, V56, P347

[10] FARRIS, 1946, AM J OBSTETRICS GYNE, V52, P14