Long-term Safety and Efficacy of Difelikefalin in Subjects With Chronic Kidney Disease–Associated Pruritus: Analysis From KALM-1 and KALM-2. J of Skin [Internet]. 2021 Nov. 5 [cited 2025 Apr. 20];5(6):s75. Available from: https://skin.dermsquared.com/skin/article/view/1426