Authors: J Cuzick; P Sasieni; P Davies; J Adams; C Normand; A Frater; M van Ballegooijen; E van den Akker Journal: Health Technol Assess Date: 1999 Impact factor: 4.014
Authors: A Lytwyn; J W Sellors; J B Mahony; D Daya; W Chapman; N Ellis; P Roth; A T Lorincz; A Gafni Journal: CMAJ Date: 2000-09-19 Impact factor: 8.262