Google Scholar February 11, 2026 by jlamprecht http://scholar.google.com/scholar_lookup?&title=Low-dose%20theophylline%20enhances%20the%20anti-inflammatory%20effects%20of%20steroids%20during%20exacerbations%20of%20COPD&journal=Thorax&volume=64&pages=424-429&publication_year=2009&author=Cosio%2CBG&author=Iglesias%2CA&author=Rios%2CA&author=Noguera%2CA&author=Sala%2CE&author=Ito%2CK
