2) WHO QOL GROUP(1994) Development Of Who Qol. Rational and Current Status.. Int. J. Mental Health. (1994) vol.23, p.24-56.
3) HYLAND M. E. A scale for assessing quality of life in adult asthma sufferers.. J Psychosom Res. (1991) vol.35, p.99-110.
4) JUNIPER E. F. Evaluation of impairement of health related quality of life in asthma; development of a quesitonnaire for use in clinical trials.. Thorax. (1992) vol.47, p.76-83.
5) BOUSQUET J. Quality of life in asthma : 1. internal consistency and validity of the SF-36 questionnaire. Am. J. Respir. Crit. Care. Med. (1994) vol.149, p.371-375.