Fig. 1From: Application of extracorporeal membrane oxygenation in patients with severe acute respiratory distress syndrome induced by avian influenza A (H7N9) viral pneumonia: national data from the Chinese multicentre collaborationFlowchart. A flowchart illustrating the enrolment of patients with avian influenza A (H7N9) virus-induced pneumonia who were reported to the National Health and Family Planning Commission of China; patients were admitted to 20 hospitals in 9 provinces of China between October 1, 2016, and March 1, 2017Back to article page