Larsson, Susanna C.
Burgess, Stephen
Michaƫlsson, Karl
Article History
Received: 18 January 2018
Accepted: 26 April 2018
First Online: 17 May 2018
Ethics approval and consent to participate
: Ethical approval was not sought, because this study involved analysis of publicly available summary-level data from GWASs, and no individual-level data were used.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.