Schmidt, S., Gocheva, V., Zumbrunn, T., Rubino-Nacht, D., Bonati, U., Fischer, D., & Hafner, P. (2017). Treatment with L-citrulline in patients with post-polio syndrome: Study protocol for a single-center, randomised, placebo-controlled, double-blind trial. Trials.

Schmidt, Simone, Vanya Gocheva, Thomas Zumbrunn, Daniela Rubino-Nacht, Ulrike Bonati, Dirk Fischer, and Patricia Hafner. "Treatment With L-citrulline in Patients With Post-polio Syndrome: Study Protocol for a Single-center, Randomised, Placebo-controlled, Double-blind Trial." Trials 2017.

Schmidt, Simone, et al. "Treatment With L-citrulline in Patients With Post-polio Syndrome: Study Protocol for a Single-center, Randomised, Placebo-controlled, Double-blind Trial." Trials 2017.