Predictive Factors for Mediastinal Lymph Node Metastases in Patients with Non-small Cell Lung Cancer, as Detected by Video-assisted Mediastinoscopic Lymphadenectomy. - Herrmann D; Ewig S; Christoph DC; Bas Kaya T; Greif K; Milobinski K; Oggiano M; Walles T; Welter S; Hecker E (Zentralblatt fur Chirurgie, 2026)