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Authors: P A Baghurst; A J McMichael; N R Wigg; G V Vimpani; E F Robertson; R J Roberts; S L Tong Journal: N Engl J Med Date: 1992-10-29 Impact factor: 91.245
Authors: R A Verheij; H D van de Mheen; D H de Bakker; P P Groenewegen; J P Mackenbach Journal: J Epidemiol Community Health Date: 1998-08 Impact factor: 3.710