References
- 1 . Akerstedt, T. Shift work and disturbed sleep/ wakefulness. - Occup. Med., 53, 2003, 89-94.
- 2 . Bortkiewicz, A. et al. Subjective symptoms reported by people living in the vicinity of cellular phone base stations: review. - Med. Pr., 55, 2004, 4, 345-351.
- 3 . Bultmann , U. Fatigue and Psychological distress in working population. The role of work and lifestyle. - PhD Thesis. Datawyse/Universitat Maastricht, 2002, pp.141.
- 4 . Chrousos , G. P. The role of stress and the hypothalamic-pituitary-adrenal axis in the pathogenesis of metabolic syndrome: neuroendocrine and target tissue-related causes. - Intern. J. Obesity, 24, 2000, Suppl. 2, S50-55.
- 5 . Costa, G. Shift work and occupational medicine: an overview. - Occup. Med., 53, 2003, 83-88.
- 6 . Jauchem, J. Effects of low-level radiofrequency (3 kHz to 300 GHz) energy on human cardiovascular, reproductive, immune and other systems: A review of the recent literature. - Int. J. Hygiene and Environmental Health, 211, 2008, № 1-2, 1-29.
- 7 . Hutter, H. Subjective symptoms, sleeping problems and mobile phone base stations. - Occup. Environ. Med., 63, 2006, 307-313.
- 8 . Israel , M., Vangelova K., Ivanova M. Cardiovascular risk in physiotherapists under electromagnetic radiation. - Environmentalist 27, 2007, № 4, 539-543.
- 9 . ICNIRP. Guidelines for limiting exposure to time-varying electric, magnetic and electromagnetic fields (up to 300 GHz). - Health Physics, 74, 1998, № 4, 494-522.
- 10 . Knutsson , A. Health disorders of shift workers. - Occup. Med., 53, 2003,103-108.
- 11 . Kompier, M. et L. Levi. Stress at work: causes, effects and prevention. A guide for small and medium sized enterprises. - European Foundation for Improvement of Living and Working Conditions. 1994, Geneva.
- 12 . Mann , K. et al. Effects of pulsed high frequency electromagnetic fields on the neuroendocrine system. - Neuroendocrinology, 67, 1998, 139-144.
- 13 . Mc Ewen , B. S. Protective and damaging effects of stress mediators. - N. Engl. J. Med., 338, 1998, № 3, 171-179.
- 14 . Randon , K. et al. No effects of pulsed radiofrequency electromagnetic fields on melatonin, cortisol and selected markers of the immune system in men. - Bioelectromag, 22, 2001, 280-287.
- 15 . Röösli , M., R. Rapp et C. Braun-Fahrlander. Radio and microwave frequency radiation and health - An Analysis of the literature. - Gesundheitswesen, 65, 2003, № 6, 378-392.
- 16 . Röösli , M. et al. Systematic review on the health effects of exposure to radiofrequency electromagnetic fields from mobile phone base stations. - Bull. World Health Organ., 88, 2010, № 12, 887-896.
- 17 . Tzenova, B. Stress and psychosocial risk factors. - Bulg. J. Publ. Health, 2, 2010, № 2, 23-29 (in Bg, En).
- 18 . Vangelova, K. Method for assessment of catecholamines adrenaline and noradrenaline in urine. - In: Methods for Investigations in Hygiene. National Center of Hygiene, Medical Ecology and Nutrition, Sofia, 2000, № 2, 2-4 (in Bulgarian).
- 19 . Vangelova, K., Deyanov C. et Israel M. Cardiovascular risk under radiofrequency electromagnetic radiation. - Int. J. Hyg. Environ. Health, 209, 2006, 133-138.
- 20 . Vangelova, K. et Israel M. Variations of melatonin and stress hormones under extended shifts and radiofrequency electromagnetic radiation. - Rev. Environ. Health, 20, 2005, № 2, 151-161.