About the Authors

Alice Zwerling

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

Andrea Benedetti

Affiliations Department of Epidemiology, Biostatistics & Occupational Health, McGill University, Montreal, Canada, Respiratory Epidemiology & Clinical Research Unit, Montreal Chest Institute, Montreal, Canada, Department of Medicine, McGill University Health Centre, Montreal, Canada

Mihaela Cojocariu

Affiliations Respiratory Epidemiology & Clinical Research Unit, Montreal Chest Institute, Montreal, Canada, Research Institute of the McGill University Health Center, Montreal, Canada

Fiona McIntosh

Affiliation Research Institute of the McGill University Health Center, Montreal, Canada

Filomena Pietrangelo

Affiliation Department of Occupational Health & Safety, McGill University Health Center, Montreal, Canada

Marcel A. Behr

Affiliations Department of Epidemiology, Biostatistics & Occupational Health, McGill University, Montreal, Canada, Respiratory Epidemiology & Clinical Research Unit, Montreal Chest Institute, Montreal, Canada, Department of Medicine, McGill University Health Centre, Montreal, Canada

Kevin Schwartzman

Affiliations Respiratory Epidemiology & Clinical Research Unit, Montreal Chest Institute, Montreal, Canada, Department of Medicine, McGill University Health Centre, Montreal, Canada

Dick Menzies

Affiliations Department of Epidemiology, Biostatistics & Occupational Health, McGill University, Montreal, Canada, Respiratory Epidemiology & Clinical Research Unit, Montreal Chest Institute, Montreal, Canada, Department of Medicine, McGill University Health Centre, Montreal, Canada

Madhukar Pai

madhukar.pai@mcgill.ca

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

Competing Interests

MP serves on the editorial boards of PLOS ONE and PLOS Medicine. He is a Section Editor with PLOS ONE. MB is co-author of a United States patent on molecular differences between species of the Mycobacterium tuberculosis complex. United States patent filed May 25, 1999 Bozicevic, Field and Francis, LLP, Palo Alto, California, 94301. Serial number 09/313,191. Issued as United States patent 6,291,190 B1 October 2001. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Revised the manuscript: KS. Conceived and designed the experiments: AZ MB DM MP KS. Performed the experiments: AZ AB MC FM FP. Analyzed the data: AZ AB MP. Contributed reagents/materials/analysis tools: FM MB FP. Wrote the paper: AZ MP.