Nation-wide primary healthcare research network: a privacy protection assessment, Van Casteren, Viviane, Bossuyt Nathalie, Moreels S, Goderis G., Bartholomeeusen S., Bonte P., and Bangels M. , Stud.Health Technol.Inform., 0/4/2012, Volume 174, Number 28, p.23 - 28, (2012)