Irreversible pan-ErbB tyrosine kinase inhibitor CI-1033 induces caspase-independent apoptosis in colorectal cancer DiFi cell line - S. Skvortsov; I. Skvortsova; B. Sarg; J. Loeffler-Ragg; H. Lindner; P. Lukas; J. Tabernero; H. Zwierzina (Apoptosis, 2005)