1. Nazik E, Eryilmaz G. Incidence of pregnancy-related discomfort and management approaches to relieve them among pregnant women. J Clin Nurs. 2014; 23(11-12):1736–1750.
2. Hall WA, Hauck YL, Carty EM, Hutton EK, Fenwick J, Stoll K. Childbirth fear, anxiety, fatigue, and sleep deprivation in pregnant women. J Obstet Gynecol Neonatal Nurs. 2009; 38(5):567–576.
Article
3. Balendran J, Champion D, Jaaniste T, Welsh A. A common sleep disorder in pregnancy: Restless legs syndrome and its predictors. Aust N Z J Obstet Gynaecol. 2011; 51(3):262–264.
Article
4. Okun ML, Hanusa BH, Hall M, Wisner KL. Sleep complaints in late pregnancy and the recurrence of postpartum depression. Behav Sleep Med. 2009; 7(2):106–117.
Article
5. Leung PL, Hui DS, Leung TN, Yuen PM, Lau TK. Sleep disturbances in Chinese pregnant women. BJOG. 2005; 112(11):1568–1571.
Article
6. Kim YH, Cho OH. Factors influencing fatigue in pregnant women. J Korean Soc Matern Child Health. 2012; 16(1):80–88.
7. Ko H, Shin J, Kim MY, Kim YH, Lee J, Kil KC, et al. Sleep disturbances in Korean pregnant and postpartum women. J Psychosom Obstet Gynaecol. 2012; 33(2):85–90.
Article
8. Lopes EA, Carvalho LB, Seguro PB, Mattar R, Silva AB, Prado LB, et al. Sleep disorders in pregnancy. Arq Neuropsiquiatr. 2004; 62(2A):217–221.
Article
9. Kızılırmak A, Timur S, Kartal B. Insomnia in pregnancy and factors related to insomnia. ScientificWorldJournal. 2012; 2012:197093.
Article
10. Kamysheva E, Skouteris H, Wertheim EH, Paxton SJ, Milgrom J. A prospective investigation of the relationships among sleep quality, physical symptoms, and depressive symptoms during pregnancy. J Affect Disord. 2010; 123(1-3):317–320.
Article
11. Dørheim SK, Bjorvatn B, Eberhard-Gran M. Can insomnia in pregnancy predict postpartum depression? a longitudinal, population-based study. PLoS One. 2014; 9(4):e94674.
Article
12. Ahn HR. Experimental study of the effects of husband's supportive behavior reinforcement education on stress relief of primigravidas [dissertation]. Seoul: Yonsei University;1984.
13. Chou FH, Kuo SH, Wang RH. A longitudinal study of nausea and vomiting, fatigue and perceived stress in, and social support for, pregnant women through the three trimesters. Kaohsiung J Med Sci. 2008; 24(6):306–314.
Article
14. Parcells DA. Women's mental health nursing: Depression, anxiety and stress during pregnancy. J Psychiatr Ment Health Nurs. 2010; 17(9):813–820.
Article
15. Jeong GH, Kim SJ. Differences of women's perception of fatigue according to the period of pregnancy. J Korean Acad Nurs. 2000; 30(3):731–740.
Article
16. Hong SH, Kim KH. A study on the stress of pregnant and the coping of pregnant. Korean J Fam Welf. 2001; 6(2):115–128.
17. Kwon MK, Bang KS. Relationship of prenatal stress and depression to maternal-fetal attachment and fetal growth. J Korean Acad Nurs. 2011; 41(2):276–283.
Article
18. Tack B. Dimensions and correlated of fatigue in older adults with rheumatoid arthritis [dissertation]. San Francisco: University of California;1991.
19. Lee KS. Prediction model of fatigue in women with rheumatoid arthritis [dissertation]. Seoul: Seoul National University;1999.
20. Buysse DJ, Reynolds CF 3rd, Monk TH, Berman SR, Kupfer DJ. The Pittsburgh sleep index: A new instrument for psychiatric practice and research. Psychiatry Res. 1989; 28(2):193–213.
21. Kim GD. A study on quality of sleep and emotional health status in the elderly [master's thesis]. Daegu: Kyungpook National University;1998.
22. Kim JS, Lee YS. Study on fatigue, stress and burnout of pregnant nurses. Korean J Occup Health Nurs. 2013; 22(3):208–217.
Article
23. Kim YA. Relationship between maternal stress during pregnancy and neonatal stress response [master's thesis]. Seoul: Seoul National University;2007.
24. Gaston A, Prapavessis H. Tired, moody and pregnant? exercise may be the answer. Psychol Health. 2013; 28(12):1353–1369.
Article
25. Hung HM, Tsai PS, Ko SH, Chen CH. Patterns and predictors of sleep quality in Taiwaneses pregnant women. MCN Am J Matern Child Nurs. 2013; 38(2):95–101.
26. Ko SH, Chang SC, Chen CH. A comparative study of sleep quality between pregnant and nonpregnant Taiwanese women. J Nurs Scholarsh. 2010; 42(1):23–30.
Article
27. Lee KA, Zaffke ME, McEnany G. Parity and sleep patterns during and after pregnancy. Obstet Gynecol. 2000; 95(1):14–18.
Article
28. Tsubouchi H, Shimoya K, Hayashi S, Toda M, Morimoto K, Murata Y. Effect of coffee intake on blood flow and maternal stress during the third trimester of pregnancy. Int J Gynaecol Obstet. 2006; 92(1):19–22.
Article
29. Diego M, Field T, Hernandez-Reif M, Vera Y, Gil K, Gonzalez-Garcia A. Caffeine use affects pregnancy outcome. J Child Adolesc Subst Abuse. 2007; 17(2):41–49.
Article
30. Fairbrother N, Hutton EK, Stoll K, Hall W, Kluka S. Psychometric evaluation of the multidimensional assessment of fatigue scale for use with pregnant and postpartum women. Psychol Assess. 2008; 20(2):150–158.
Article