Authors: Tjard R Schermer; Reinier P Akkermans; Alan J Crockett; Marian van Montfort; Joke Grootens-Stekelenburg; Jim W Stout; Willem Pieters Journal: Ann Fam Med Date: 2011 Jul-Aug Impact factor: 5.166
Authors: Cristina Represas-Represas; Alberto Fernández-Villar; Alberto Ruano-Raviña; Ana Priegue-Carrera; Maribel Botana-Rial Journal: PLoS One Date: 2016-01-04 Impact factor: 3.240