False-negative results of combined endobronchial and endoscopic ultrasound in mediastinal staging of lung cancer - Gambuś, Karolina; Moszczyński, Konrad; Popovchenko, Sofiia; Szlubowski, Artur; Ćmiel, Adam; Kocoń, Piotr; Kużdżał, Błażej (Kardiochirurgia i Torakochirurgia Polska/Polish Journal of Thoracic and Cardiovascular Surgery, 2026)