50P LYMPHANGIOGENESIS IN SMALL CELL LUNG CARCINOMAS (SCLC); NEW INSIGHTS IN PROGNOSIS - Hardavella, G; Siozopoulou, V; Batistatou, A.; Galanis, P; Dalavanga, Y; Alchanatis, M; Constantopoulos, S; Stefanou, D (Lung Cancer, 2011)