Said, Engy T, et al. “Noninvasive, Wearable, Pulsed Shortwave (Radiofrequency) Therapy for Analgesia Following Knee and Hip Arthroplasty: A Case Series”. Archives of Clinical and Medical Case Reports, vol. 6, no. 6, Dec. 2022, pp. 758-62, https://fortunejournals.org/ojs/index.php/acmcr/article/view/22687.