Authors: Jon Stone; Wojtek Wojcik; Daniel Durrance; Alan Carson; Steff Lewis; Lesley MacKenzie; Charles P Warlow; Michael Sharpe Journal: BMJ Date: 2002-12-21
Authors: Tim C olde Hartman; Peter L B J Lucassen; Eloy H van de Lisdonk; Hans H J Bor; Chris van Weel Journal: Br J Gen Pract Date: 2004-12 Impact factor: 5.386