Weisshaar, Elke, Thomas Sciascia, and Sonja Stander. 2021. “Efficacy and Safety of Oral Nalbuphine Extended Release in Prurigo Nodularis: Results of a Phase 2, Randomized, Controlled Trial With an Open Open-Label Extension Phase”. SKIN The Journal of Cutaneous Medicine 5 (1):s29. https://doi.org/10.25251/skin.5.supp.29.