Lars Barregard, Monica Nordberg, Bruce Fowler, Gunnar Nordberg, Thomas W. Clarkson, O. behalf of the S. -. 2015. Dr. Maths Berlin. La Medicina del Lavoro. 106, 3 (Apr. 2015), 232. DOI:https://doi.org/10.23749/mdl.v106i3.4389.