Neutrophil/Lymphocyte Ratio as a Predictive Biomarker of NIV Failure in AECOPD: The Unveiled Facts [Letter]

Dipasri Bhattacharya,1 Antonio M Esquinas,2 Mohanchandra Mandal3 1Department of Anaesthesiology, Pain Medicine and Critical Care, R.G.Kar Medical College & Hospital, Kolkata, West Bengal, India; 2Critical Care Specialist and Staff Physician, Intensive Care Unit, Hospital Morales, Murcia, Spain; 3Department of Anaesthesiology, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, IndiaCorrespondence: Mohanchandra Mandal, Department of Anaesthesiology, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India, Email drmcmandal@gmail.com