Stanimirov, Pavel, and Samuil Dzhenkov. “Benign Symmetrical Lipomatosis (Bsl) Of The Head And Neck: Clinical Case Presentation”. International Journal of Medical Science and Clinical invention 6, no. 08 (August 24, 2019): 4562-4564. Accessed October 21, 2019. https://valleyinternational.net/index.php/ijmsci/article/view/2261.