Authors: C H Compton; J Gubb; R Nieman; J Edelson; O Amit; A Bakst; J G Ayres; J P Creemers; G Schultze-Werninghaus; C Brambilla; N C Barnes Journal: Lancet Date: 2001-07-28 Impact factor: 79.321
Authors: Donald P Tashkin; Bartolome Celli; Stephen Senn; Deborah Burkhart; Steven Kesten; Shailendra Menjoge; Marc Decramer Journal: N Engl J Med Date: 2008-10-05 Impact factor: 91.245