Authors: Ian C Michelow; Kurt Olsen; Juanita Lozano; Nancy K Rollins; Lynn B Duffy; Thedi Ziegler; Jaana Kauppila; Maija Leinonen; George H McCracken Journal: Pediatrics Date: 2004-04 Impact factor: 7.124
Authors: Julie Greensill; Paul S McNamara; Winifred Dove; Brian Flanagan; Rosalind L Smyth; C Anthony Hart Journal: Emerg Infect Dis Date: 2003-03 Impact factor: 6.883