title: [Concentration or network?].
authors.forename: Thierry
authors.initials: T
authors.lastname: Rochat
authors.forename: Philippe
authors.initials: P
authors.lastname: Leuenberger
mesh_terms: D015510:Clinical Medicine / Q000458:organization & administration / Q000592:standards*; D004059:Diffusion of Innovation; D013557:Switzerland