EKG Line Orientation Core Topics 2020 Up-to-Date COVID-19 3 Clerk 2021 6 1/2 COVID-19 clerk2 COVID-19 clerk1 COVID-19 COVID-19 Webex clerk2 clerk1 PGY Webex 2021 5 2021 6 1 6 11 Clerk 2 3-5 CXR EKG Line CXR CXR line CXR 2.0 Chapter3 02