Hoyer, P., P. Ly, L. Ross, and M. Wilkerson. “Timolol for Treatment of Recalcitrant Pyogenic Granulomas: A Case Report and Review of the Literature”. SKIN The Journal of Cutaneous Medicine, vol. 1, no. 3, Nov. 2017, pp. 150-5, doi:10.25251/skin.1.3.7.