Secondary immunodeficiency induced by unfavourable environmental conditions / V. A. Chereshnev, N. N. Kevorkov, B. A. Bachmetyev [et al] // XVth International Congress of Allergology and Clinical Immunology & Annual Meeting of the European Academy of Allergology and Clinical Immunology : аbstracts. - Stockholm : Hogrefe & Huber Publishers, 1994. - № 2. - P. 195.