Lee SMK, Leem J, Park JH, et al. Close look at the experiences of patients enrolled in a clinical trial of acupuncture treatment for atrial fibrillation in Korea: a qualitative study nested within a randomised controlled trial. BMJ Open 2017;7:e013180. doi: 10.1136/bmjopen-2016-013180
There should be two Corresponding authors. Both Sanghoon Lee and Weon Kim should be considered the Corresponding authors for this paper. The Correspondence section should read:
Correspondence to
Dr Sanghoon Lee; shlee777@gmail.com
and
Weon Kim; mylovekw@hanmail.net