5David R. Spigel,John D. Hainsworth,John H. Barton,Jeffrey F. Patton,John D. Zubkus,Lisa Simons,Paula Griner,Howard A. Burris,F. Anthony Greco.Phase II Study of Biweekly Pemetrexed and Gemcitabine in Patients with Previously Untreated Advanced Non-small Cell Lung Cancer[J].Journal of Thoracic Oncology.2010(6)
6Calvert H.An overview of folate metabolism: features relevant to the action and toxicities of antifolate anticancer agents[].Seminars in Oncology.1999
