Funding for this research was provided by:
Svenska Forskningsrådet Formas
the Swedish Foundation for Strategic Research
Received: 1 December 2020
Accepted: 26 April 2021
First Online: 10 May 2021
: This study was performed in accordance with the principles expressed in the Declaration of Helsinki. The protocols were approved by the local ethics committee at Karolinska Institutet (for the MALF study DNr 04-593/1 with additions DNr 2008/1122-32 and DNr 2011/1051-31; for the Swedish Search study DNr 2006/1324-31/1). Written informed consent was obtained from all participants or their parents/legal guardians.
: Written informed consent was obtained from all participants or their parents/legal guardians.
: CS, LER, PS, MG, NA, JRK, BN, GH and SM have no competing interests. AS is a member in the Joint Steering Committee for the Human Translational Microbiome Program at Karolinska Institutet together with Ferring Pharmaceuticals, Switzerland. JK was a scientific advisor of Blueprint Genetics until January 2020.