Liu, Ville D, Lasse Sellgren, Minna Kaila, and Tuomas Koskela. “Usability of Online Symptom Checkers”. Finnish Journal of eHealth and eWelfare 13, no. 2 (June 18, 2021): 100–112. Accessed April 26, 2024. https://journal.fi/finjehew/article/view/97020.