Barman B, Parihar A, Kohli N, Agarwal A, Dwivedi DK, Kumari G.
Impact of Bedside Combined Cardiopulmonary Ultrasound on Etiological Diagnosis and Treatment of Acute Respiratory Failure in Critically Ill Patients. 
Indian J Crit Care Med
2020;
24
(11):1062-1070.