Chromosomal Sensitivity to Ionising Radiation in Lymphocytes of Patients with Head and Neck cancer oleh Farshid Farhan, Majid Mahmoodi, Cyrus Azimi, Mohammad-Ali Mohagheghi, Farideh Farzanfar, Azam Noormohammadi, Malihea Khaleghian, Mahbod Esfahani, Abbas Jafari, Zahra Safari, Kouros Divsalar