“…8 The disease and its treatment can affect the patient's physical functioning and ability to communicate. 9 Head and neck cancer can impact on 1 or more of the physiological organs and tissue of the mouth, tongue, salivary glands, nasopharynx, oropharynx, laryngopharynx, larynx, nose, and paranasal sinuses. The impact of the cancer in conjunction with iatrogenic affects of surgery, radiotherapy, and chemotherapy (either as standalone treatments or more commonly in combination) causes detrimental effects on function.…”