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IP address: 3.85.211.2
Time: 2024-03-28T12:50:12Z
URL: http://scholar.google.com/scholar_lookup?title=Effect+of+exacerbation+on+quality+of+life+in+patients+with+chronic+obstructive+pulmonary+disease&year=1998&author=Seemungal&journal=Am+J+Respir+Crit+Care+Med&volume=157&issue=5+Pt+1&pages=1418-1422&pmid=9603117