MedCram YouTube video about Vitamin D and Covid. https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwi1rcnmwMntAhUKrp4KHTJ7AAoQwqsBMAF6BAgDEAg&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3Dha2mLz-Xdpg&usg=AOvVaw3Gw8FvXu5I2WQrOE9jmP0c
