Promsarn, Simaporn, Kanokwan Rattanasaengloet, Sutat Pipopsuthipaiboon, Nongnoot Panitchatchawal, and Patharapan Lersritwimanmaen. 2023. “Effect of Wearing a Face Mask on the 6-Minute Walk Test in Healthy Volunteers”. Siriraj Medical Journal 75 (12):880-86. https://doi.org/10.33192/smj.v75i12.264856.