Al-Riyami, Y. M., A. Bakathir, K. Al-Farsi, and F. Al-Azri. “Relapse of Multiple Myeloma Presenting As Lower Lip Numbness”. Sultan Qaboos University Medical Journal, vol. 16, no. 4, Nov. 2016, pp. 500-3, doi:10.18295/squmj.2016.16.04.017.