0.8×1×1.2×1.5×1.7×2×2.5×4 min⚡️5 min 26 sec4 min 21 sec3 min 37 sec2 min 54 sec2 min 33 sec2 min 10 sec1 min 44 secIntroduction to the Research Study0.8×1×1.2×1.5×1.7×2×2.5×4 min⚡️5 min 26 sec4 min 21 sec3 min 37 sec2 min 54 sec2 min 33 sec2 min 10 sec1 min 44 secIntroduction to the Research StudyYour user agent does not support the HTML5 Video element.