The META Scholar Volume 5 | Page 63

References About.com. http://cysticfibrosis.about.com/od/livingwithcysticfibrosis/a/spirometry.htm American Thoracic Society. http://www.thoracic.org/clinical/copdHart, Michael N. Loeffler, Agnes G. Introduction to Human Disease. Jones & Bartlett Learning, Sudbury MA. 2012 Print. Health|Patient.co.uk. http://www.patient.co.uk/health/Spirometry.htm MedlinePlus Medical Encyclopedia. http://www.nlm.nih.gov/ency/article/0001027.htm WebMD. http://www.webmd.com/lung/picture-of-the-lungs