| Cover and contents | |
| 1-2 |
| Upstream therapy in atrial fibrillation | |
| A. Kisheva, Y. Yotov, A. Angelov, A. Penev | 3-13 |
| Respiratory infections, bacterial resistance and therapy with β-lactam antibiotics | |
| K. Yankov | 14-22 |
| Clinical and microbiological characteristics of hospitalized patients with community- acquired pneumonia | |
| Vanya Kostadinova, Jordan Radkov, Iskra Mircheva | 23-27 |
| Lung neuroendocrine carcinoma with clinical debut of a primary mediastinal tumor. histological and immunohistochemical typing of lymph node metastasis | |
| Liliana Petkova | 28-34 |