Yang, Shengping, and Gilbert Berdine. “The Sequential, Multiple Assignment, Randomized Trial (SMART) Design”. The Southwest Respiratory and Critical Care Chronicles 12, no. 50 (January 29, 2024): 58-63. Accessed May 9, 2024. https://pulmonarychronicles.com/index.php/pulmonarychronicles/article/view/1281.