Joris J Linmans*, Mark G Spigt, Linda Deneer, Annelies EM Lucas, Marlies de Bakker, Luc G Gidding, Rik Linssen and J André Knottnerus
* Corresponding author: Joris J Linmans joris.linmans@maastrichtuniversity.nl
BMC Family Practice 2011, 12:95 doi:10.1186/1471-2296-12-95