共 21 条
[1]
CAMPANELLA R, 1975, OBSTET GYNECOL, V45, P331
[2]
CAVANAGH D, 1977, OBSTET GYNECOL, P320
[3]
CLAUSEN JP, 1977, MATERNITY NURSING TO
[4]
CURTIS FLS, 1974, AM J NURSING, V1, P100
[5]
EASTERDAY B, 1978, FERTILITY RELATED HL
[6]
ESCHEN CC, 1976, 84TH ANN CONV AM PSY
[7]
FORD K, 1979, VITAL HLTH STATISTIC, V23
[8]
FURSTENBURG FF, 1976, UNPLANNED PARENTHOOD
[10]
KISTNER RW, 1973, AM J NURSING, V73, P1937