Right upper lobe agenesis presenting with recurrent respiratory infections in a child (M. Emilova, N. Tolekova, N. Kartulev, E. Rangelov, V. Oparanova, N. Gabrovska, E. Kostova, B. Mladenov, & H. Shivachev , Trans.). (2026). Bulgarian Medical Journal, 20(1), 54-56. https://journals.mu-sofia.bg/index.php/bmj/article/view/801