I am currently receiving all my health care from Veterans Administration. Primary Care and Mental Health at Akron, Ohio and Pulmonary Care, and testing at Cleveland (Wade Park), Ohio As of 7/15/2011 my Oxygen prescription for times of exertion was increased to 4-5 liters continuous flow. I started on Liquid Oxygen delivery system on 7/26. 8/1 still learning how to properly refill the portable units. 8/8/2011 I started Pulmonary Rehab 3 times a week at VA Cleveland, same as Cardiac Rehab but different monitoring.