Correction to: Association between cigar use, with and without cigarettes, and incident diagnosed COPD: a longitudinal cohort study

Affiliations

• ¹ Department of Epidemiology, University of Michigan, 1415 Washington Heights, Ann Arbor, MI, 48109, USA. cookstev@umich.edu.
• ² Department of Epidemiology, University of Michigan, 1415 Washington Heights, Ann Arbor, MI, 48109, USA.
• ³ Department of Oncology, Georgetown University, Washington, DC, USA.
• ⁴ Department of Integrative Oncology, BC Cancer Research Institute, Vancouver, BC, USA.
• ⁵ School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.