Combination chemotherapy with gemcitabine and vinorelbine in the treatment of patients with relapsed or refractory small cell lung cancer: a phase II trial of the Minnie Pearl Cancer Research Network. - Hainsworth, John D.; Burris III, Howard A.; Erland, Joan B.; Baker, Margaret; Scullin Jr., Daniel C.; Shaffer, Don W.; Greco, F. Anthony; Burris, Howard A 3rd; Scullin, Daniel C Jr; Minnie Pearl Cancer Research Network (Cancer Investigation, 2003)