https://www.verywellhealth.com/how-to-find-copd...
https://www.lung.org/help-support/better-breath...
https://connect.mayoclinic.org/group/copd-chron...
Be very very careful about fraudsters. They are getting more and more tricky to get your information.
talk to your doctor and insurance for information.
I know. That’s why I’m asking this question. Thank you.
Were you able to do any research? Did you find them on the internet? Are they with BBB?