Halpin, D. M. (2016). Tiotropium in asthma: What is the evidence and how does it fit in? Elsevier.
Chicago Style (17th ed.) CitationHalpin, David M.G. Tiotropium in Asthma: What Is the Evidence and How Does It Fit in? Elsevier, 2016.
MLA (8th ed.) CitationHalpin, David M.G. Tiotropium in Asthma: What Is the Evidence and How Does It Fit in? Elsevier, 2016.
Warning: These citations may not always be 100% accurate.