To learn more about how the PreCheck Health Services “PC8B” medical device works, please view this excerpt from a training video for the device https://www.youtube.com/watch?v=4TEOwjMBTEE. https://globenewswire.com/news-release/2019/01/22/1703356/0/en/PreCheck-Health-Services-Inc-signs-exclusive-distribution-agreement-on-the-company-s-new-medical-device.html HLTY