Klein, Ehud, Ron Shapiro, Jose Ben- Dahan, Moshe Simcha, Yosef Azuri, and Ada Rosen. 2023. “A Prospective, Randomized, Three Arm, Open Label Study Comparing the Safety and Efficacy of PP110, a Novel Treatment for Hemorrhoids to Preparation-H® Maximum Strength Cream in the Treatment of Grade 2–3 Hemorrhoids”. Molecular Cellular Therapy and Mechanism 3 (1):1-6. https://doi.org/10.13052/s40591-015-0043-5.