Hasan, H. Y. A., and M. A. Rizwan. “Efficacy of OK-432 Therapy for the Incisionless Treatment of Head and Neck Cystic Masses: Case Series”. Sultan Qaboos University Medical Journal, vol. 18, no. 1, Apr. 2018, pp. e88-92, doi:10.18295/squmj.2018.18.01.014.