Collection of test questions on hygiene and ecology for students of the specialty "Medicine"

Authors: Teodora Dimitrova, Ruzha Pancheva, Darina Naydenova, Rositsa Chamova, Dimcho Tomov, Ekaterina Valcheva, Staniela Porozhanova, Albena Toneva, Stanislava Hadzhieva, Yavor Chenkov, Dimitar Marinov, Panayot Nikolov, Rosalina Braykova, Eva Hristova