hello everyone my name is kim, I'm 55 yrs old. I have had severe copd for the past 4yrs. I live on oxygen machine all the time, but I go out sometimes I carry tanks with me which is such a pain, but I'm grateful to God to be able to go out at all. I heard of this thing called stem cell surgery, which improves your breathing causes the fat tissue from your body gets injected back into your lungs or something. I spoke to a lady who said her husband had it and it went well, my doc said he never heard of it and would not recommend it, so I was wondering has anyone else heard of it?