Weekly (20 mg/m2 D1, D2) and q 3 wks (70 mg/m2 x 3c or 100 mg/m2 x 3c) regimens have all been listed as acceptable. For reference, RTOG 97–06, RTOG 88–02, RTOG 89–03. Please provide rationale, whether simply opinion or evidence based, and provide practical guidance points, if any (e.g. neutropenia or severe adverse effect concerns).