共 46 条
- [1] Alarab M, 2004, AM COLL OBSTET GYNAE, V103
- [3] [Anonymous], IBM SPSS STAT VERS 2
- [4] Australian Institute of Health and Welfare (AIHW), 2017, AUSTR MOTH BAB 2015, P1
- [5] Bjellmo S, 2017, BR MED J OPEN, V7, P10
- [9] Dahlen H., 2018, MIDWIFERY PREPARATIO, P66
- [10] Dahlen H, 2011, ESSEN MIDIRS, V2, P17