Authors: K Korkeila; S Suominen; J Ahvenainen; A Ojanlatva; P Rautava; H Helenius; M Koskenvuo Journal: Eur J Epidemiol Date: 2001 Impact factor: 8.082
Authors: Nancy J Preston; Morag C Farquhar; Catherine E Walshe; Clare Stevinson; Gail Ewing; Lynn A Calman; Sorrel Burden; Christine Brown Wilson; Jane B Hopkinson; Chris Todd Journal: Cochrane Database Syst Rev Date: 2016-02-29