Retreatment of Lung Adenocarcinoma Patients With Gefitinib Who Had Experienced Favorable Results From Their Initial Treatment With This Selective Epidermal Growth Factor Receptor Inhibitor: A Report of Three CasesSeiji Yano, Saburo Sone, S. Ohtsuka et al.|Oncology Research Featuring Preclinical and Clinical Cancer Therapeutics|2005Cited by 97