Funding for this research was provided by:
Narodowe Centrum Badań i Rozwoju (INNOMED/1/16/NCBR/2014)
Text and Data Mining valid from 2019-12-01
Received: 25 November 2019
Accepted: 9 December 2019
First Online: 23 December 2019
Ethics approval and consent to participate
: All participants gave informed written consent for the use of samples for the research. The study was approved by Ethics Committee of the Pomeranian Medical University in Szczecin, Poland.
: Not applicable.
: Jan Lubinski is CEO of Readgene which is a distributor of selenium supplements and offers measurement of selenium level. These authors are part-time employees of Readgene: TH, AJ, JG, CC, TD, KJB, MM, WM,KB) The lead author (SN) declares no conflict of interest. Joanne Kotsopoulos is the recipient of a Cancer Care Ontario Research Chair in Population Studies and a Canadian Cancer Society Career Development Award in Prevention. Steven Narod is the recipient of a Canada Research Chair tier I.