Ushikubo, M. (2017) “Pain at end-of-life among patients with amyotrophic lateral sclerosis receiving noninvasive ventilation”, International journal of Nursing Didactics, 7(7), pp. 36–39. Available at: https://www.nursingdidactics.com/index.php/ijnd/article/view/1853 (Accessed: 23 October 2026).