Authors: Alison Harrow; Ruth Dryden; Colin McCowan; Andrew Radley; Mark Parsons; Alastair M Thompson; Mary Wells Journal: BMJ Open Date: 2014-06-12 Impact factor: 2.692
Authors: Lisette Vromans; Gerardine Doyle; Silvia Petak-Opel; Alexander Rödiger; Martina Röttgermann; Elke Schlüssel; Eva Stetter Journal: BMJ Open Date: 2013-08-21 Impact factor: 2.692