Song HE, Lee SH, Kim SJ, et al. Association of circulating levels of total and protein-bound sphingosine 1-phosphate with osteoporotic fracture. J Investig Med 2020; 68:1295–9. doi:10.1136/jim-2020-001322corr1.
Since the publication of this article, the author’s institution has been added to the second affiliations: ‘University of Ulsan College of Medicine’.