Text and Data Mining valid from 2018-10-15
Received: 30 December 2017
Accepted: 1 October 2018
First Online: 15 October 2018
Ethics approval and consent to participate
: The cohort study was approved in 2002 by the Ethics Committee of Päijät-Häme Central Hospital, which is located in the city of Lahti, and this extension study was approved in 2013 by the Ethics Committee of Pirkanmaa Hospital District (R12013). Written informed consent was requested and obtained from all cohort participants in 2002.
: Not applicable.
: The authors declare that they have no competing interests.
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