Brinker TJ, Enk A, Gatzka M, Nakamura Y, Sondermann W, Omlor AJ, Petri MP, Karoglan A, Seeger W, Klode J, von Kalle C, Schadendorf D A Dermatologist's Ammunition in the War Against Smoking: A Photoaging App J Med Internet Res 2017;19(9):e326 DOI: 10.2196/jmir.8743