Authors: Krista M Maier; Colleen M Kirkham; Elizabeth Lim; Ka Wai Cheung; Stefan Grzybowski Journal: Can Fam Physician Date: 2002-07 Impact factor: 3.275
Authors: A Rosano; D Smithells; L Cacciani; B Botting; E Castilla; M Cornel; D Erickson; J Goujard; L Irgens; P Merlob; E Robert; C Siffel; C Stoll; Y Sumiyoshi Journal: J Epidemiol Community Health Date: 1999-10 Impact factor: 3.710