Prognostic impact of lymphangiogenesis and lymphatic invasion (CD105 expression) in small cell lung carcinoma - Hardavella, Georgia; Arkoumani, Evdokia; Dalavanga, Yiotanna; Galanis, Petros; Agnantis, Niki J; Constantopoulos, Stavros; Stefanou, Dimitrios (Anticancer research, 2008)