Authors: Matthew P Buman; Eric B Hekler; William L Haskell; Leslie Pruitt; Terry L Conway; Kelli L Cain; James F Sallis; Brian E Saelens; Lawrence D Frank; Abby C King Journal: Am J Epidemiol Date: 2010-09-15 Impact factor: 4.897
Authors: Ken P Kleinman; Emily Oken; Jenny S Radesky; Janet W Rich-Edwards; Karen E Peterson; Matthew W Gillman Journal: Int J Epidemiol Date: 2007-08-22 Impact factor: 7.196