共 21 条
[12]
Lukacs A, 1991, J Perinat Neonatal Nurs, V5, P33
[13]
*MAN HLTH, 1985, REP STBON GEN HOSP C
[15]
NABORS GC, 1956, OBSTET GYNECOL, V7, P211
[16]
Norr K F, 1989, J Obstet Gynecol Neonatal Nurs, V18, P133, DOI 10.1111/j.1552-6909.1989.tb00476.x
[17]
POWER DJ, 1980, S AFR MED J, V58, P893
[18]
STEWART PJ, 1985, CAN J PUBLIC HEALTH, V76, P206
[19]
THEOBALD GW, 1959, BRIT MED J, V5163, P1364