Jelena Stojšić has been a thoracic pathologist for the last 25 years. Her major interest is in the field of lung pathology, particularly lung cancer, pleural tumors, and interstitial lung diseases. The aim of her PhD thesis was recognition of the link between molecular pathways in lung cancer and transport pumps involved in the reflux of chemotherapeutics from malignant cells. In daily practice, she is involved in lung cancer pathological diagnosis based on its morphology and immunoprofile with the aim of personalizing therapy for patients. She is the author of a chapter on lung cancer for IntechOpen and the editor of book on interstitial lung disease.