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5 Choi JI. Effects of living and exercise habits on scoliosis of middle school girls in their growing stage. J of Physical Growth and Motor Development. 2004;12(4):135-46.

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12 Available from URL: http://kosis.kr/domestic/theme/do01index.jsp?listid=A& listnm

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14 Cho MH. The research on the sport activitys of high school boys after-school on the actual condition and reformed recommendation. Graduate school of education Kookmin University. 2007.

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16 Park HJ, Yim SY. Frequency of Irritable Bowel Syndrome, Entrance Examination Stress, Mental Health, and Quality of Life among Adolescent Women. 2009;16(2):170-80.

17 Lee IS. Academic Stress, Coping Method, and Stress Symptoms of High School Students. J. of Korean Soc. of School Health. 2006;19(2):25-36.

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