My understanding is that all 72 patients were not

My understanding is that all 72 patients were not in critical condition to start with, otherwise they would have gone to the ER due to difficult in breathing. I’m glad a frontline doctor is willing to share anecdotal evidence. He’s not suggesting they are the same as a controlled trial data of course. He’s optimistic because he gets to see a lot more than us. That optimism is backed up by small studies from China and France, which you did not mention. Larger studies are needed, which we all know.