Heppt, M. V., Steeb, T., Schmitz, L., Garbe, C., French, L. E., Leiter, U., & Berking, C. (2019). Harmonisation of Outcome Parameters and Evaluation (HOPE) for actinic keratosis: Protocol for the development of a core outcome set. Trials.

Heppt, Markus V., Theresa Steeb, Lutz Schmitz, Claus Garbe, Lars E. French, Ulrike Leiter, and Carola Berking. "Harmonisation of Outcome Parameters and Evaluation (HOPE) for Actinic Keratosis: Protocol for the Development of a Core Outcome Set." Trials 2019.

Heppt, Markus V., et al. "Harmonisation of Outcome Parameters and Evaluation (HOPE) for Actinic Keratosis: Protocol for the Development of a Core Outcome Set." Trials 2019.