Authors: David Rabago; Aleksandra Zgierska; Marlon Mundt; Bruce Barrett; James Bobula; Rob Maberry Journal: J Fam Pract Date: 2002-12 Impact factor: 0.493
Authors: Jochen W L Cals; Marjolein J C Schot; Sanne A M de Jong; Geert-Jan Dinant; Rogier M Hopstaken Journal: Ann Fam Med Date: 2010 Mar-Apr Impact factor: 5.166
Authors: Jim Young; An De Sutter; Dan Merenstein; Gerrit A van Essen; Laurent Kaiser; Helena Varonen; Ian Williamson; Heiner C Bucher Journal: Lancet Date: 2008-03-15 Impact factor: 79.321
Authors: Talley Andrews; Matthew Thompson; David I Buckley; Carl Heneghan; Rick Deyo; Niamh Redmond; Patricia J Lucas; Peter S Blair; Alastair D Hay Journal: PLoS One Date: 2012-01-27 Impact factor: 3.240