The cancer stem cell antigens CD133, BCRP1/ABCG2 and CD117/c-KIT are not associated with prognosis in resected early-stage non-small cell lung cancer - Herpel, Esther; Jensen, Katrin; Muley, Thomas; Warth, Arne; Schnabel, Philipp Albert; Meister, Michael; Herth, Felix; Dienemann, Hendrik; Thomas, Michael; Gottschling, Sandra (Anticancer research, 2011)