Authors: Mirella F Longo; David R Cohen; Kerenza Hood; Adrian Edwards; Michael Robling; Glyn Elwyn; Ian T Russell Journal: Br J Gen Pract Date: 2006-01 Impact factor: 5.386
Authors: Margaret E Kruk; Magdalena Paczkowski; Godfrey Mbaruku; Helen de Pinho; Sandro Galea Journal: Am J Public Health Date: 2009-07-16 Impact factor: 9.308