First published online: 28 September 2019, Int J Epidemiol 2019; 48: 1516–18. doi: https://doi.org/10.1093/ije/dyz201
The originally published version of this article contained a typographic error in the title; this has now been corrected.
First published online: 28 September 2019, Int J Epidemiol 2019; 48: 1516–18. doi: https://doi.org/10.1093/ije/dyz201
The originally published version of this article contained a typographic error in the title; this has now been corrected.