Muqmiroh L, Yusfadhiyah SF, Rahardjo P. Erect Position as the Alternative Technique in Achilles Tendon US: Comparison with Prone Position. KSS [Internet]. 2018 Aug. 8 [cited 2025 Oct. 31];3(11):211–220. Available from: https://knepublishing.com/index.php/KnE-Social/article/view/2760