Topf, Joel, Warren Wen, Catherine Munera, Frédérique Menzaghi, and Michael Schömig. “Efficacy of Difelikefalin in Subjects With Moderate-to-Severe Chronic Kidney Disease–Associated Pruritus: Pooled Subgroup Analysis of KALM-1 and KALM-2”. SKIN The Journal of Cutaneous Medicine 5, no. 6 (November 5, 2021): s77. Accessed August 15, 2022. https://jofskin.org/index.php/skin/article/view/1428.