Fong SF, Sakai DH, D’Eon M, Trinder K. The effect of case nodes in problem-based learning on the length and quality of discussion: a 2x2 factorial study. Can. Med. Ed. J [Internet]. 2022 Feb. 4 [cited 2024 May 1];13(1):75-80. Available from: https://journalhosting.ucalgary.ca/index.php/cmej/article/view/71812