Karen S. Galea, Alison Searl, Araceli Sanchez-Jimenez, Torill WoldbaK, Kristin Halgard, Syvert Thorud, Kjersti Steinsvag, Kirsti Kruger, Laura MacCalman, John W. Cherrie and Martie van Tongeren
The Annals of Occupational Hygiene 56 ( 1 ): 61 - 69 , 2012