http://www.ncbi.nlm.nih.gov/pubmed/12522485
http://www.pulsus.com/journals/pdf_frameset.jsp?jnlKy=4&atlKy=4778&isArt=t&jnlAdvert=Resp&adverifHCTp=&sTitle=Additive%20effect%20of%20dornase%20alfa%20and%20Nacystelyn%20on%20transportability%20and%20viscoelasticity%20of%20cystic%20fibrosis%20sputum%2C%20Pulsus%20Group%20Inc&VisitorType=