A randomized trial comparing lung-volume-reduction surgery with medical therapy for severe emphysema.
N Engl J Med. 2003 May 22;348(21):2059-73. doi: 10.1056/NEJMoa030287. Epub 2003 May 20.
N Engl J Med. 2003.
PMID: 12759479
Free article.
Clinical Trial.