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Only LTOT has been shown to improve survival in COPD: https://t.co/s5beks3OSC
Only LTOT has been shown to improve survival in COPD: https://t.co/s5beks3OSC
@mickey_scotty How about this one on LTOT for COPD? It's not ideal as you can't tell O2 duration in the studies... http://t.co/OydcTrROwc