Herbert C, Hettiaratchi A, Webb DC, Thomas PS, Foster PS, Kumar RK (May 2008). “Suppression of cytokine expression by roflumilast and dexamethasone in a model of chronic asthma”. 《Clinical and Experimental Allergy》 38 (5): 847–56. doi:10.1111/j.1365-2222.2008.02950.x. PMID18307529. S2CID19050454.
Field SK (May 2008). “Roflumilast: an oral, once-daily selective PDE-4 inhibitor for the management of COPD and asthma”. 《Expert Opinion on Investigational Drugs》 17 (5): 811–8. doi:10.1517/13543784.17.5.811. PMID18447606. S2CID73241684.
Herbert C, Hettiaratchi A, Webb DC, Thomas PS, Foster PS, Kumar RK (May 2008). “Suppression of cytokine expression by roflumilast and dexamethasone in a model of chronic asthma”. 《Clinical and Experimental Allergy》 38 (5): 847–56. doi:10.1111/j.1365-2222.2008.02950.x. PMID18307529. S2CID19050454.
Field SK (May 2008). “Roflumilast: an oral, once-daily selective PDE-4 inhibitor for the management of COPD and asthma”. 《Expert Opinion on Investigational Drugs》 17 (5): 811–8. doi:10.1517/13543784.17.5.811. PMID18447606. S2CID73241684.
Herbert C, Hettiaratchi A, Webb DC, Thomas PS, Foster PS, Kumar RK (May 2008). “Suppression of cytokine expression by roflumilast and dexamethasone in a model of chronic asthma”. 《Clinical and Experimental Allergy》 38 (5): 847–56. doi:10.1111/j.1365-2222.2008.02950.x. PMID18307529. S2CID19050454.
Field SK (May 2008). “Roflumilast: an oral, once-daily selective PDE-4 inhibitor for the management of COPD and asthma”. 《Expert Opinion on Investigational Drugs》 17 (5): 811–8. doi:10.1517/13543784.17.5.811. PMID18447606. S2CID73241684.