Salchev, P., National Center of Public Health and Analyses, Sofia, Bulgaria
Salchev, Petko
Salchev, Petko, NCPHA
Saleva, Milena, Medical University of Pleven
Seyfulov, Nezrin, Medical University of Varna
Shipkovenska, Elena, Medical University of Sofia
Simeonov, S., Regional Health Insurance Fund, Stara Zagora
Simeonova, I., Medical University of Sofia
Slavchev, Stanislav, Medical University of Varna
Slavova, V, Department of Social Medicine, Health Management and Disaster Medicine, Medical Faculty, Trakia University, Stara Zagora
Social Medicine, Editors, Medical University of Varna
Stavrev, Dimitar, Medical University of Varna
Stoinovska, M., Department of Hygiene, Medical University - Pleven, Bulgaria
Stoyanova, Dilyana

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