How much oxygen is too much oxygen?

As the accompanying editorial to this article says, "oxygen has long been a friend of the medical profession Even old friendships require reappraisal in the light of new information." And that’s what a new rapid reccomendation - Oxygen therapy for acutely ill medical patients - does. To discuss we're joined by two of the authors, Reed Simieniuk, general internist at McMaster University and Gordon Guyatt, distinguished professor at McMaster University. Read the full recommendation: https://www.bmj.com/content/363/bmj.k4169