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Halperin, Mike; Washington, Moses; Silverberg, Joshua Z. . (2017). Pneumonia diagnosed by emergency department point-of-care ultrasound (POCUS) in a patient with severe undifferentiated dyspnea and equivocal chest radiograph. Visual Journal of Emergency Medicine, 7(), 28–29. doi:10.1016/j.visj.2016.11.004 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research