Once doctors figured out that ventilators were killing more patients than they were saving?
What they need are different oxygen delivery systems and dialysis machines
Oxygen delivery to every bedside in the 16,000 patient rooms constructed to-date by the Corps of Engineers throughout the country is mentioned in today’s daily briefing. That was not initially in the requirements, but was added, and they went back and retrofitted O2 to every bed in the 16 (I think) new emergency hospitals they have built so far. Amazing work!