Great info.
Thanx. A lot
More comments about lungs and breathing:
https://freerepublic.com/focus/f-bloggers/3735908/posts?page=316#316
https://freerepublic.com/focus/f-bloggers/3735908/posts?page=322#322
https://freerepublic.com/focus/f-bloggers/3735908/posts?page=337#337