Covid-19 treatment

In medicine, the diffusion of innovation occurs over years. I have seen laparoscopic abdominal surgery (minimally invasive surgery) replace open surgery over 3 or 4 years in my clinical lifetime.
It was a simple study design. Retrospective and observational, in today's science, a fishing trip for correlation by computer.
Mayor Giuliani now thinks he's Dr. Giuliani. His website is offering up two very bad videos on coronavirus and COVID-19.