About the Authors

Devasahayam J. Christopher

Affiliation Department of Pulmonary Medicine, Christian Medical College, Vellore, Tamil Nadu, India

Peter Daley

Affiliation Department of Medicine (Unit I), Christian Medical College, Vellore, Tamil Nadu, India

Lois Armstrong

Affiliation Department of Medicine (Unit I), Christian Medical College, Vellore, Tamil Nadu, India

Prince James

Affiliation Department of Pulmonary Medicine, Christian Medical College, Vellore, Tamil Nadu, India

Richa Gupta

Affiliation Department of Pulmonary Medicine, Christian Medical College, Vellore, Tamil Nadu, India

Beulah Premkumar

Affiliation College of Nursing, Christian Medical College, Vellore, Tamil Nadu, India

Joy Sarojini Michael

Affiliation Department of Microbiology, Christian Medical College, Vellore, Tamil Nadu, India

Vedha Radha

Affiliation College of Nursing, Christian Medical College, Vellore, Tamil Nadu, India

Alice Zwerling

Affiliation Department of Epidemiology and Biostatistics, McGill University, Montreal, Canada

Ian Schiller

Affiliation Division of Clinical Epidemiology, McGill University Health Center, Montreal, Canada

Nandini Dendukuri

Affiliations Department of Epidemiology and Biostatistics, McGill University, Montreal, Canada, Division of Clinical Epidemiology, McGill University Health Center, Montreal, Canada

Madhukar Pai

madhukar.pai@mcgill.ca

Affiliations Department of Epidemiology and Biostatistics, McGill University, Montreal, Canada, Respiratory Epidemiology & Clinical Research Unit, Montreal Chest Institute, Montreal, Canada

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DJC PD MP. Performed the experiments: DJC PD LA PJ RG BP JSM VR. Analyzed the data: DJC PD LA PJ RG BP AZ IS ND MP. Contributed reagents/materials/analysis tools: JSM VR. Wrote the paper: DJC PD AZ IS ND MP. Provided funding: MP.