Thank you, Louisa, I found your link worked.

Thanks for the post, Felicity. I found the info very interesting.

Eileen, try this link, I found the link that was put up earlier worked, https://www.sciencedaily.com/releases/2020/04/200415133646.htm

Thank you felicity I’m in, much appreciated

Let me know how you all get on with this

If you manage to open it, it has other interesting articles ......

https://www.sciencedaily.com/releases/2020/04/200415133646.htm

This is the link I got when I just put in "COPD as a Lung Stem Cell Disease" in my browser. It's the same article published in "Science Daily"

Hi felicity I’ve tried again am I missing key words

Hi, I've also tried to access the article & also get the error message on the University of Houston website, say it cannot be accessed. Felicity, please can would you be so kind to, copy & paste the web address from your internet browser when you have the document open online? That way, we can copy & paste direct to our browsers. Many thanks