Authors: Ary L Goldberger; Luis A N Amaral; Jeffrey M Hausdorff; Plamen Ch Ivanov; C-K Peng; H Eugene Stanley Journal: Proc Natl Acad Sci U S A Date: 2002-02-19 Impact factor: 11.205
Authors: William M Trochim; Derek A Cabrera; Bobby Milstein; Richard S Gallagher; Scott J Leischow Journal: Am J Public Health Date: 2006-01-31 Impact factor: 9.308