Authors: A Chockalingam; D Abbott; M Bass; R Battista; R Cameron; J de Champlain; C E Evans; J Laidlaw; B L Lee; L Leiter Journal: CMAJ Date: 1990-06-15 Impact factor: 8.262
Authors: R W Jeffery; P L Pirie; P J Elmer; W M Bjornson-Benson; V A Mullenbach; C L Kurth; S L Johnson Journal: Am J Public Health Date: 1984-05 Impact factor: 9.308