The Korean Academy of Family MedicineRakel RE, Rakel DP. Textbook of family medicine 4th edition. Seoul: Euihak Publishing Co.;. Textbook of family medicine. 4th ed. 2015. p. 17-28.
Shin HC. Fatigue. The Korean Academy of Family Medicine, Family Medicine. 4th ed. Seoul: JIN & JPNC; 2013. p. 370-80.
Matthews DA, Manu P, Lane TJ. Evaluation and management of patients with chronic fatigue. Am J Med Sci 1991; 302: 269-77.
Chalder T, Berelowitz G, Pawlikowska T, Watts L, Wessely S, Wright D, et al. Development of a fatigue scale. J Psychosom Res 1993; 37: 147-53.
Song CH, Chung KI. Clinical usefulness of fatigue severity scale for patients with fatigue, and anxiety or depression. Korean J Psychosomatic Medicine 2001; 9: 164-73.
Kim SH. The relationship between hair levels of nutrient minerals/heavy metals and fatigue [dissertation]. Seoul: Catholic Univ.; 2003. Korean.
Friedberg F. Coping with chronic fatigue syndrome. Oakland (CA): New Harbinger Publication; 1995. p. 27-32.
Frank SH, Zyzanski SJ. Stress in the clinical setting: the Brief Encounter Psychosocial Instrument. J Fam Pract 1988; 26: 533-9.
Yim JH, Bae JM, Choi SS, Kim SW, Hwang HS, Huh BY. The validity of modified Korean-translated BEPSI (Brief Encounter Psychosocial Instrument) as instrument of stress measurement in outpatient clinic. J Korean Acad Fam Med 1996; 17: 42-53.
Oh SM, Min KJ, Park DB. A study on the standardization of the hospital anxiety and depression scale for Koreans: a comparison of normal, depressed and anxious groups. J Korean Neuropsychiatr Assoc 1999; 38: 28996.
Seo JB. Effects of vitamin e,selenium and zinc sulfate on superoide release from human polymorphonuclear leukocytes and cultured bovine retinal pigment epithelial cells [dissertation]. Seoul: Graduate School the Catholic Univ.; 1999. Korean.
Watts DL. Trace elements and other essential nutrients : clinical application of tissue mineral analysis. 2nd ed. Texas: Trace elements, Inc.; 1997.
Rautio A, Kunnasranta M, Valtonen A, Ikonen M, Hyvärinen H, Holopainen IJ, et al. Sex, age, and tissue specific accumulation of eight metals, arsenic, and selenium in the European hedgehog (Erinaceus europaeus). Arch Environ Contam Toxicol 2010; 59: 642-51.
Selye H. The stress of life. New York: McGraw-Hill; 1956.