Low Neck: The midjugular, low jugular, and supraclavicular nodes can be treated either with IMRT or alternatively with an AP field that is beam split to the IMRT fields. This will be at the discretion of the treating physician. If an IMRT approach is not used, then it will not be necessary to submit the DVHs for this PTV. However, if an IMRT approach is used, then it will be necessary to generate DVHs for this PTV. Radiation doses will be as in the attached protocol.