- Neoadjuvant PFL augmented by methotrexate and piritrexim followed by concomitant chemoradiotherapy for advanced head and neck cancer: a feasible and active approach. Vokes, E.E., Haraf, D.J., McEvilly, J.M., Mick, R., Kozloff, M.F., Goldman, M.D., Moran, W.J., Clendeninn, N.J., Collier, M.A., Weichselbaum, R.R. Ann. Oncol. (1992)









