Walle, P
Takkunen, M
Männistö, V
Vaittinen, M
Käkelä, P
Ågren, J
Schwab, U
Lindström, J
Tuomilehto, J
Uusitupa, M
Pihlajamäki, J
Article History
Received: 7 February 2017
Revised: 24 June 2017
Accepted: 16 July 2017
First Online: 4 September 2017
Competing interests
: The authors declare no conflict of interest.