共 22 条
[12]
Continuous support for women during childbirth (Withdrawn paper. 2011. art. no. CD003766)
[J].
COCHRANE DATABASE OF SYSTEMATIC REVIEWS,
2011, (02)
[14]
CONTINUOUS EMOTIONAL SUPPORT DURING LABOR IN A UNITED-STATES HOSPITAL - A RANDOMIZED CONTROLLED TRIAL
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
1991, 265 (17)
:2197-2201
[17]
Mathews T. J., 2013, NATL VITAL STAT REPO, V61, P1
[19]
Patton MQ, 2002, QUALITATIVE RES EVAL