Correction to: Orphanet Journal of Rare Diseases (2020) 15:328 https://doi.org/10.1186/s13023-020-01616-0

Following the publication of the original article [1], it was brought to the authors’ attention that there are several errors within the article, introduced through both typographical and editorial oversight as well as through final typesetting.

The errors and their respective corrections are shown in Table 1. The authors apologise for these errors, but note that the results and conclusions of the manuscript remain unchanged.

Table 1 .