Authors: Tumaini R Coker; Helen M DuPlessis; Ramona Davoudpour; Candice Moreno; Michael A Rodriguez; Paul J Chung Journal: Acad Pediatr Date: 2011-11-10 Impact factor: 3.107
Authors: Leigh Ann Simmons; Jennifer R Havens; Jason B Whiting; Jennifer L Holz; Henrietta Bada Journal: Ann Epidemiol Date: 2009-03 Impact factor: 3.797