Wolff Henrik, Vehmas Tapio, Oksa Panu, Rantanen Jorma, Vainio Harri
Finnish Institute of Occupational Health (FIOH) Topeliuksenkatu 41aA 00250 Helsinki Finland.
Scand J Work Environ Health. 2015 Jan;41(1):5-15. doi: 10.5271/sjweh.3462. Epub 2014 Oct 9.