Authors: J M Grimshaw; L Shirran; R Thomas; G Mowatt; C Fraser; L Bero; R Grilli; E Harvey; A Oxman; M A O'Brien Journal: Med Care Date: 2001-08 Impact factor: 2.983
Authors: Karen N van Dijk; Lisa G Pont; Corinne S de Vries; Maria Franken; Jacobus R B J Brouwers; Lolkje T W de Jong-van den Berg Journal: Ann Pharmacother Date: 2003 Jul-Aug Impact factor: 3.154