1. Bennett MP, Lengacher CA. Humor and laughter may influence health. I. History and background. Evid Based Complement Alternat Med. 2006; 3:61–63.
Article
2. Berk LS, Felton DL, Tan SA, Bittman BB, Westengard J. Modulation of neuroimmune parameters during the eustress of humor-associated mirthful laughter. Altern Ther Health Med. 2001; 7:62–76.
3. Buckwalter KC, Babich KS. Psychologic and physiologic aspects of depression. Nurs Clin North Am. 1990; 25:945–954.
4. Cho YK. Effects of a rehabilitation exercise program on pain, physical fitness, depression and life satisfaction of the elderly with osteoarthritis of the knee. Busan: Kosin University;2007. Unpublished master's thesis.
5. Choi SH. Function of social support on depression of patients with rheumatoid arthritis. J Rheumatol Health. 1996; 3:63–89.
6. Christie W, Moore C. The impact of humor on patientwith cancer. Clin J Oncol Nurs. 2005; 9:211–218.
7. Facente A. Humor in health care: Irreverent or invaluable? Nursing. 2006; 36(4):646–647.
8. Foley E, Matheis R, Schaefer C. Effect of forced laughter on mood. Psychol Rep. 2002; 90:184.
Article
9. Fry WF. The physiological effects of humor, mirth, and laughter. JAMA. 1992; 267:1857–1858.
10. Ministry of Health and welfare. National health statistics, Fourth Korean national health and nutrition survey. Seoul: Author;2010.
11. Jakobsson U, Hallberg I. Pain and quality of life among older people with rheumatoid arthritis and/or osteoarthritis. J Clin Nurs. 2002; 11:430–443.
Article
12. Jung HO. The effects of laughter on sleep in the community-dwelling elderly. Daegu: Kyungpook National University;2009. Unpublished master's thesis.
13. Kee BS. A preliminary study for the standardization of Geriatric Depression Scale Short Form-Korea Version. J Korean Neuropsychiatr Assoc. 1996; 35:298–307.
14. Kim IJ. Difference of exercise stage and exercise-specific perceptions in patients with osteoarthritis. J Rheumatol Health. 2001; 8:336–345.
15. Kim JI. An effect of aquatic exercise program with self-help group activities and strategies for promoting self-efficacy on pain, physiological parameters and quality of life in patients having rheumatoid arthritis. J Rheumatol Health. 1994; 1:1–30.
16. Kim KS, Yu JA, Kim JA, Lee YS, Lee IO. Effects of Tai-Chi exercise and self-help management program applying laughter therapy in patients with osteoarthritis. J Muscle Joint Health. 2010; 17:68–78.
Article
17. Kim HJ, Suh MJ. Effects of humor video tape on an anxiety, depression, and coping of the impaired mobility patients. Seoul J Nurs. 1996; 10:203–217.
18. Kim SH, Kim YH, Kim HJ, Lee SH, Yu SO. The effect of laughter therapy on depression, anxiety, and stress in patients with breast cancer undergoing radiotherapy. J Korean Oncol Nurs. 2009; 9:155–162.
19. Ko HJ. The effects of laughter therapy on depression and cognition in a community for the aged. Daegu: Kyungpook National University;2008. Unpublished master's thesis.
20. Lee EN, Sohn HM. Predictive factors for use of complementary · alternative therapies in rheumatoid. J Korean Acad Adult Nurs. 2002; 14:184–193.
21. Lee YM, Sohn JN. The effects of laughter therapy on anger, expressions and mental status after oil spoil in victimized community residence. J Korean Acad Psychiatr Ment Health Nurs. 2010; 19:186–195.
Article
22. Marie G, Angela C, Sallie D, Patricia B, Deborah W. Study confirms belief that laughter is the best medicine. AORN J. 2004; 80:241.
23. Meenan RF, Gertman PM, Mason JH. Measuring health status in arthritis. The Arthritis Impact Measurement Scale. Arthritis Rheum. 1980; 23:146–152.
24. Park SH, Back MW. The analysis of research in arthritis. J Muscle Joint Health. 2000; 7:227–240.
25. Ro YJ. An analytical study on the quality of life of the middle-aged in Seoul. Seoul: Yonsei University;1988. Unpublished doctoral dissertation.
26. Sheikh JI, Yesavage JA. Geriatric Depression Scale (GDS): Recent evidence and development of shorter version. Clin Gerontol. 1986; 5:165–173.
27. Walter M, Hänni B, Haug M, Amrhein I, Krebs-Roubicek E, Müller-Spahn F, et al. Humor therapy in patients with late-life depression or Alzheimer's disease: A pilot study. Int J Geriatr Psychiatry. 2006; 22:77–83.
Article
28. Yoo HJ. Geriatrics. Seoul: Medical publisher;2005.
29. Yu JA, Kim KS. Effects of laughter therapy on stress response and pain of military personnel with low back pain in hospital. J Muscle Joint Health. 2009; 16:36–45.
30. Yu SJ, Lee JE, Lee KR. The effects of laughter therapy on vital sign and emotional state in homes for the aged. J Korean Acad Psychiatr Ment Health Nurs. 2005; 14:55–63.