Gary L Freed1. 1. Child Health Evaluation and Research Unit, Division of General Pediatrics, University of Michigan, Ann Arbor, MI 48109, USA. gfreed@med.umich.edu
Authors: Catherine A Golski; Ellen S Rome; Richard J Martin; Scott H Frank; Sarah Worley; Zhiyuan Sun; Anna Maria Hibbs Journal: Pediatrics Date: 2009-12-14 Impact factor: 7.124