Yeh J, Wei Y, Lin C, et al. Association of asthma–chronic obstructive pulmonary disease overlap syndrome with coronary artery disease, cardiac dysrhythmia and heart failure: a population-based retrospective cohort study. BMJ Open 2017;7:e017657. doi: 10.1136/bmjopen-2017-017657
Two of the author affiliations are incorrect. The correct affiliations number 2 and 3 are as follows:
2. Chia Nan University of Pharmacy and Science, Tainan, Taiwan
3. Meiho University, Pingtung, Taiwan
The ‘Correspondence’ section should read:
Correspondence to Dr Jun-Jun Yeh; anvin.funlan@msa.hinet.net and Dr Wu-Huei Hsu; pccm.hsu@gmail.com