1. Khresheh R. Support in the first stage of labour from a female relative: the first step in improving the quality of maternity services. Midwifery. 2010; 26(6):e21–e24. https://doi.org/10.1016/j.midw.2008.11.003.
Article
2. Hardin AM, Buckner EB. Characteristics of a positive experience for women who have unmedicated childbirth. The Journal of perinatal education. 2004; 13(4):10–16. https://doi.org/10.1624/105812404X6180.
Article
3. Yeo JH, Chun NM. Influence of childbirth experience and postpartum depression on quality of life in women after birth. Journal of Korean Academy of Nursing. 2013; 43(1):11–19. https://doi.org/10.4040/jkan.2013.43.1.11.
Article
4. Rubavathy P, Jenifer J, Stellagracy G, Kumar K. Effectiveness of social support during labour on behavioral response among primi mothers. International Journal of Nursing Education. 2015; 7(4):142–146. https://doi.org/10.5958/0974–9357.2015.00208.1.
5. Junge C, Soest T, Weidner K, Seidler A, Eberhard-Gran M, Gar-thus-Niegel S. Labor pain in women with and without severe fear of childbirth: A population-based, longitudinal study. Birth. 2018; 00:1–9. https://doi.org/10.1111/birt.12349.
Article
6. Hodnett ED, Gates S, Hofmeyr GJ, Sakala C. Continuous support for women during childbirth. Cochrane Database of Systematic Reviews. 2013(7):).https://doi.org/10.1002/14651858.CD003766.pub5.
Article
7. Hodnett ED. Nursing support of the laboring woman. Journal of Obstetric, Gynecologic & Neonatal Nursing. 1996; 25(3):257–264. https://doi.org/10.1111/j.1552–6909.1996.tb02434.x.
Article
8. Park G, Choi J, Lee J, Jean B. Effects of doula support in LDR (Labor-Delivery-Recovery) on anxiety, labor pain, and perceived childbirth experience of primiparas. Journal of Korean Clinical Nursing Research. 2008; 14(3):87–97.
9. Middlemiss L. Doulas complementary or conflicting? Midwives. 2015; 18(4):66–68.
10. AWHONN. Continuous labor support for every woman. Journal of Obstetric, Gynecologic & Neonatal Nursing. 2018; 47(1):73–74. https://doi.org/10.1016/j.jogn.2017.11.010.
11. Choi YS, Jung MS. Factors affecting women's satisfaction with hospital environment following childbirth. Journal of Academia-Industrial Technology. 2013; 14(11):5627–5635. https://doi.org/10.5762/KAIS.2013.14.11.5627.
Article
12. Hur MH. Effects of one-to-one labor support on labor pain, labor stress response, childbirth experience and neonatal status for primipara. Korean Journal of Women Health Nursing. 2001; 7(2):188–202.
13. Eom SY, Kim ES, Kim HJ, Bang YO, Chun N. Effects of a one session spouse-support enhancement childbirth education on childbirth self-efficacy and perception of childbirth experience in women and their husbands. Journal of Korean Academy of Nursing. 2012; 42(4):599–607. https://doi.org/10.4040/jkan.2012.42.4.599.
Article
14. Lee YJ, Kim SH. Influences of husband's supports for during childbirth and attitudes toward husband's childbirth presence on women's childbirth experiences. Journal of the Korean Data Analysis Society. 2014; 16(6):3345–3359. http://uci.or.kr/G704–000930.2014.16.6.012.
15. Kim KS. The effects of aroma massage on stress and anxiety during delivery. Journal of International Union of Complementary and Alternative Medicine. 2011; 7(1):17–26.
16. Mortazavi SH, Khaki S, Moradi R, Heidari K, Vasegh Rahim-parvar SF. Effects of massage therapy and presence of attendant on pain, anxiety and satisfaction during labor. Archives Of Gynecology And Obstetrics. 2012; 286(1):19–23. https://doi.org/10.1007/s00404-012–2227–4.
Article
17. Schwartz-Barcott D, Kim HS. An expansion and elaboration of the hybrid model of concept development. Rogers BL, Knafl KA, editors. editors.Concept development in nursing: foundations, techniques, and applications. 2nd ed.Philadelphia: W.B. Sau-ders company;2000. p. 129–159.
18. The National Institute of the Korea Language. Standard language dictionary [Internet]. Seoul: Author;2015. [cited 2017 October 30], Available from:. http://stdweb2.korean.go.kr.
19. Burgess A. An evolutionary concept analysis of labor support. International Journal of Childbirth Education. 2014; 29(2):64–72.
20. Barrett SJ, Stark MA. Factors associated with labor support behaviors of nurses. The Journal of perinatal education. 2010; 19(1):12–18. https://doi.org/10.1624/105812410X481528.
Article
21. Corbett CA, Callister LC. Nursing support during labor. Clinical Nursing Research. 2000; 9(1):70–83. https://doi.org/10.1177/105477380000900106.
Article
22. Sleutel MR. Development and testing of the labor support scale. Journal of Nursing Measurement. 2002; 10(3):249–262. https://doi.org/10.1891/jnum.10.3.249.52561.
Article
23. Rosen P. Supporting women in labor: analysis of different types of caregivers. Journal of Midwifery & Women's Health. 2004; 49(1):24–31. https://doi.org/10.1016/j.jmwh.2003.10.013.
Article
24. Adams ED, Bianchi AL. A practical approach to labor support. Journal of Obstetric, Gynecologic, & Neonatal Nursing. 2008; 37(1):106–115. https://doi.org/10.1111/j.1552–6909.2007.00213.x.
Article
25. Lee SH, Lee MO. Characteristics, motivation of choice and childbirth experience of women who selected delivery at midwifery clinic. Korean Parent-Child Health Journal. 2013; 16:1–10.
26. Im HM, Kim JH. Methods and estimates of the reimbursement for the nurse midwifery center in the national health insurance. Korean Journal of Women Health Nursing. 2011; 17(4):328–336. https://doi.org/10.4069/kjwhn.2011.17.4.328.
Article
27. Sosa G, Crozier K, Robinson J. What is meant by one-to-one support in labour: analysing the concept. Midwifery. 2012; 28(4):451–457. https://doi.org/10.1016/j.midw.2011.07.001.
Article
28. Ross-Davie M, Cheyne H. Intrapartum support: what do women want? A literature review. Evidence Based Midwifery. 2014; 12(2):52–58.