[Jubilee scientific session of the Scientific Institute of Internal Diseases, Medical Academy, on the 70th anniversary of the Great October Socialist Revolution. Sofia, 9 October 1987. Proceedings].
D006801:Humans; D007388:Internal Medicine
Iz materialite na Iubileĭnata nauchna sesiia na Nauchniia institut po vutreshni bolesti pri Meditsinskata akademiia po sluchaĭ 70. godishnina na Velikata oktombriĭska sotsialisticheska revoliutsiia --9. X. 1987 g., Sofiia.