1. Hertel LW, Kroin JS, Misnr JW, Tustin JM: Synthesis of 2-deoxy-2,2-difluoro-D-ribose and 2-deoxy-2,2-difluoro-D-ribofuranosyl nucleosides. J Org Chem 53:2406–2409, 1988
2. Keating MJ, McCredie KB, Bodey GP, Smith TL, Gehan E, Freireich EJ: Improved prospects for long-term survival in adults with acute myelogenous leukemia. JAMA 248:2481–2486, 1982
3. Chabner BA, Meyers CE: Clinical pharmacology of cancer chemotherapy. In: DeVita VT, Hellman S, Rosenberg SA (eds) Cancer: Principles and Practice of Oncology. J.B. Lippincott, Philadelphia, pp 167, 1982
4. Hertel LW, Boder GB, Kroin JS, Rinzel SM, Poore GA, Todd GC, Grindey GB: Evaluation of the antitumor activity of gemcitabine 2′,2′-difluoro-2′-deoxycytidine. Cancer Res 50:4417–4422, 1990
5. Braakhuis BJM, van Dongen GAMS, Vermorken JB, Snow GB: Preclinical in vivo activity of 2′,2′-difluorodeoxycytidine (gemcitabine) against human head and neck cancer. Cancer Res 51:211–214, 1991