Antimicrobial effects of blue light therapy against cutibacterium acnes: optimal dosing and impact of serial treatments oleh Eric J. Cotter, MD, Lisa M. Cotter, MD, Colleen N. Riley, BA, Jonah Dixon, BS, Nicholas VanDerwerker, BS, Aniekanabasi Ime Ufot, MS, Jared Godfrey, BS, David Gold, PhD, Scott J. Hetzel, MS, Nasia Safdar, MD, PhD, Brian F. Grogan, MD