Naue, Jana
Winkelmann, Julia
Schmidt, Ulrike
Lutz-Bonengel, Sabine
Funding for this research was provided by:
Universitätsklinikum Freiburg
Article History
Accepted: 30 March 2021
First Online: 30 April 2021
Declarations
:
: J. Naue, J. Winkelmann, U. Schmidt and S. Lutz-Bonengel declare that they have no competing interests.
: Research involving human participants. Approval for tissue sampling and DNA methylation analysis was given by the ethics committee of the University of Freiburg, Germany (263/10, amendment 397/16). All procedures performed in studies involving human participants were in accordance with the ethical standards of the ethics committee of Faculty of Medicine, University of Freiburg, and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.