Funding for this research was provided by:
REACH Selenium and Tellurium Consortium
Text and Data Mining valid from 2019-11-15
Received: 5 July 2019
Accepted: 3 November 2019
First Online: 15 November 2019
Compliance with ethical standards
: The authors declare that there is no conflict of interest.
: All procedures performed in the study involving human participants were in accordance with the ethical standards of the ethics committee of the Friedrich-Alexander University Erlangen-Nürnberg (Ref. Nr. 257_16B) and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: All participants were informed both orally and in writing about the study and gave their written consent. All selenium-exposed workers of the plant were asked to participate and all but two of the available workers were willing to take part in the study.