Boonmak, P., Boonmak, S., Mitsungnern, T., & Chareonpol, F.- ngam. (2014). Comparison Study between Face Shield and Pocket Mask for Adult Basic Life Support Training for Health Care Provider. Srinagarind Medical Journal, 29(2), 121–126. Retrieved from https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/18261