biostudies-literatureUnknown5(3)Lone NJournal of thoracic disease213-5https://www.ebi.ac.uk/biostudies/studies/S-EPMC3698285biostudies-literatureRoflumilast: a green signal is yet to come.PMC3698285Oba YLone NfalseRoflumilast: a green signal is yet to come.2013-01-01T00:00:00Z2013 Jun2025-04-04T21:51:50.578Z2025-04-04T21:51:50.578ZS-EPMC36982852382574810.3978/j.issn.2072-1439.2013.05.11