3609304 EPOCH-R etoposide, prednisone, vincristine, cyclophosphamide, doxorubicin, and rituximab 10 3609307 EPOCH-R employed in combination with a multi-agent chemotherapy regimen 1 3609305 EPOCH-R etoposide, doxorubicin, and cyclophosphamide with vincristine, prednisone, and rituximab 1 3609306 EPOCH-R etoposide, prednisolone, vincristine, doxorubicin, and cyclophosphamide with rituximab 1