So, T. Y., Ai, Q.-Y., Ma, B. B. and King, A. D. (2020) “Early intra-treatment diffusion weighted magnetic resonance imaging in patients with recurrent nasopharyngeal carcinoma treated with nivolumab”, International Journal of Otorhinolaryngology and Head and Neck Surgery, 6(3), pp. 568–573. doi: 10.18203/issn.2454-5929.ijohns20200637.