Summary: 58 2 mmHg oxygen saturation of 92 3 and PaO2 fractional concentration of inspired oxygen of 59 4 mmHg A chest X ray showed bilateral infiltration without dilatation of the cardiac shadow Fig 2A Ultrasound cardiography showed normal cardiac function without dilatation of the inferior vena cava and heart and regurgitation of valves in the heart indicating no evidence of
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