Correction to: The Pharmacogenomics Journal;

https://doi.org/10.1038/tpj.2017.37; published online 18 July 2017

In the abstract and in other parts of the manuscript the authors wrote that the mutation rs396991 causes a valine (V) to phenylalanine (F) substitution at position 157. However, the correct codon number is 158. These errors have not been fixed in the original article.