<qa>  What is the primary tumor and clinically positive neck nodes?- No more than 4-16 weeks since prior surgery andor radiotherapychemoradiotherapy NOTE: Radiotherapy must have been 70-72 Gy in 1.8-2.0 Gy fractions to the primary tumor and clinically positive neck nodes and 44-50 Gy in 1.8-2.0 Gy fractions to clinically negative nodes, including the lower neck 