Johnston, J. (2008). When are chest X-ray scans performed in the emergency department useful? BioMed Central.
استشهاد بنمط شيكاغوJohnston, JE. When Are Chest X-ray Scans Performed in the Emergency Department Useful? BioMed Central, 2008.
MLA استشهادJohnston, JE. When Are Chest X-ray Scans Performed in the Emergency Department Useful? BioMed Central, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.