Wang Ling, Wang Wanling, Can Alveolar-Arterial Oxygen Pressure Difference be used to Diagnose Acute Respiratory Distress Syndrome in Pneumonia Patients?, Journal of Current Scientific Research, Volume 1, Issue 4, 2022, Pages 20-25, ISSN 2766-8681, https://doi.org/10.14302/issn.2766-8681.jcsr-22-4162. (http://jphi-healthcarejournals.netjcsr/article/1823) Keywords: alveolar-arterial oxygen pressure difference; community-acquired pneumonia; diagnosis; sepsis; acute respiratory distress syndrome; oxygenation index