Authors: Richard Beasley; Tadd Clayton; Julian Crane; Erika von Mutius; Christopher K W Lai; Stephen Montefort; Alistair Stewart Journal: Lancet Date: 2008-09-20 Impact factor: 79.321
Authors: Matthew S Perzanowski; Rachel L Miller; Deliang Tang; David Ali; Robin S Garfinkel; Ginger L Chew; Inge F Goldstein; Frederica P Perera; R Graham Barr Journal: Thorax Date: 2009-10-22 Impact factor: 9.139