Funding for this research was provided by:
Svenska Sällskapet för Medicinsk Forskning
Cancerfonden
Swedish Breast Cancer Association
Article History
Received: 23 April 2018
Accepted: 3 May 2018
First Online: 30 May 2018
Compliance with ethical standards
:
: The authors declare no conflict of interest.
: The study was approved by the respective Regional Ethics Committees and the Central Ethics Committee in Stockholm (No. 00-053, updated ethical review in 2015, No. 2015/979-32).
: Informed consent was obtained from all individual participants included in the study.