Which of the following factors most adversely affects patients receiving radiation therapy for squamous cell carcinoma of the head and neck?

Which of the following factors most adversely affects patients receivi

1.	Which of the following factors most adversely affects patients receiving radiation therapy for squamous cell carcinoma of the head and neck?
A.	Concurrent HPV infection
B.	Concurrent tobacco use
C.	Gender of the patient
D.	Grade of the cancer
Answer» C. Gender of the patient

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Which of the following factors most adversely affects patients receiving radiation therapy for squamous cell carcinoma of the head and neck?

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