Hu, Kejia
Sjölander, Arvid
Lu, Donghao
Walker, Adam K.
Sloan, Erica K.
Fall, Katja
Valdimarsdóttir, Unnur
Hall, Per
Smedby, Karin E.
Fang, Fang
Funding for this research was provided by:
Cancerfonden (CAN 2017/322)
Forskningsrådet om Hälsa, Arbetsliv och Välfärd (2017-00531)
China Scholarship Council (201806240005)
National Health and Medical Research Council (GNT1147498)
National Breast Cancer Foundation (IIRS-20 to 025, PF-15 to 014)
Article History
Received: 28 April 2020
Accepted: 14 July 2020
First Online: 9 September 2020
Ethics approval and consent to participate
: This study was approved by the Regional Ethics Review Board in Stockholm, Sweden (Dnr 2015/1574–31). No personal consent is needed from the register-based study participants, as the study involves no direct contact with the participants and all data were anonymized and non-identifiable.
: It was not necessary to gain consent from individual participants for publication since anonymous data in such a way that the individual is no longer identifiable is not considered to be personal data, and thus not governed by the European Union General Data Protection Regulation.
: The authors declare that they have no competing interests.