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Problemi Na Khigienata|January 1, 1983
[Current methodologic approaches to the study of various delayed effects of pesticides]L Ivanova-Chemishanska, T Vergieva, E Mirkova, et al.Problemi Na Khigienata|January 1, 1983
[Industrial hygiene studies in the production of various fibers and plastics]M Spasovski, V Khristeva, N Gincheva, et al.Problemi Na Khigienata|January 1, 1981
[Air environment conditions in the patients' rooms of multistory hospitals]S Toshkov, Ts VodichenskaProblemi Na Khigienata|January 1, 1980
[Biochemical aspects of the strain of teachers' work]M Daleva, I KhatszhiolovaProblemi Na Khigienata|January 1, 1980
[Relaparotomy in early postoperative complications in the abdominal cavity]G Ganchev, S Baev, G Milushev, et al.Problemi Na Khigienata|January 1, 1980
[Results and conclusions based on our experience with the surgical treatment of mechanical intestinal obstruction]D Chetrafilov, S Stamenov, P Khandzhiev, et al.Problemi Na Khigienata|January 1, 1980
[Definition and classification of the late complications after gastric resection]G MilkovProblemi Na Khigienata|January 1, 1980
[Use of preparation ST 1341 (althesin) in endovesical interventions]Ts Ivanova, E StoianovProblemi Na Khigienata|January 1, 1995
[The assessment of the occupational risk to workers in electric steel production]A Mikhaĭlova, Z Zaprianov, G Antov, et al.Pageof 49