| Water scarcity and pollution in developing countries | |
| Zidra El-Lahib, Maria Panteleeva |
| A multidisciplinary approach for post-COVID-19 disease prevention of the staff of the Medical University of Varna | |
| Antoaneta Tsvetkova, Tsvetelina Tarpomanova, Veselina Slavova, Boris Borissov, Minko Milev, Svetlana Peneva, Silvia Filkova, Yordan Georgiev, Nikolay Nedev, Dessislava Gesheva, Vladislava Yotsova, Silvia Nikolova |
| Study of physical activity and pain in the spine area in university employees with musculoskeletal disorders | |
| Silviya Filkova, Nikolay Nedev, Yordan Georgiev, Antoaneta Tsvetkova |