L C Shea, B Gustavsson, T Horikoshi, K D Danenberg, T H Stadlbauer, M Ray, K Aigner, R Frösing, M Volkenandt, L Leichman,
Quantitation of Thymidylate Synthase, Dihydrofolate Reductase, and DT-Diaphorase Gene Expression in Human Tumors Using the Polymerase Chain Reaction Cancer Research. ,vol. 52, pp. 108- 116 ,(1992)