Authors: Antonio Giulio de Belvis; Francesca Ferrè; Maria Lucia Specchia; Luca Valerio; Giovanni Fattore; Walter Ricciardi Journal: Health Policy Date: 2012-04-30 Impact factor: 2.980
Authors: Karen Barnett; Stewart W Mercer; Michael Norbury; Graham Watt; Sally Wyke; Bruce Guthrie Journal: Lancet Date: 2012-05-10 Impact factor: 79.321