- Thymidylate synthase mRNA level in adenocarcinoma of the stomach: a predictor for primary tumor response and overall survival. Lenz, H.J., Leichman, C.G., Danenberg, K.D., Danenberg, P.V., Groshen, S., Cohen, H., Laine, L., Crookes, P., Silberman, H., Baranda, J., Garcia, Y., Li, J., Leichman, L. J. Clin. Oncol. (1996)