Antitumor activity of the selective epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) Iressa (ZD1839) in an EGFR-expressing multidrug-resistant cell line in vitro and in vivo. - Naruse,I.; Ohmori,T.; Ao,Y.; Fukumoto,H.; Kuroki,T.; Mori,M.; Saijo,N.; Nishio,K. (Int J Cancer, 2002)