Authors: Michael E Pichichero; Angela Gentile; Norberto Giglio; Margarita Martin Alonso; Maria Veronica Fernandez Mentaberri; Grazyna Zareba; Thomas Clarkson; Carlos Gotelli; Mariano Gotelli; Lihan Yan; John Treanor Journal: J Pediatr Date: 2009-06-26 Impact factor: 4.406