Authors: Paula J Lum; Kristen C Ochoa; Judith A Hahn; Kimberly Page Shafer; Jennifer L Evans; Andrew R Moss Journal: Am J Public Health Date: 2003-06 Impact factor: 9.308
Authors: Lea E Widdice; David I Bernstein; Anthony C Leonard; Keith A Marsolo; Jessica A Kahn Journal: Pediatrics Date: 2010-12-13 Impact factor: 7.124