Authors: S J Sontag; T G Schnell; T Q Miller; S Khandelwal; S O'Connell; G Chejfec; H Greenlee; U J Seidel; L Brand Journal: Gut Date: 1992-07 Impact factor: 23.059
Authors: Robert N Patterson; Brian T Johnston; Joy E S Ardill; Liam G Heaney; Lorcan P A McGarvey Journal: Thorax Date: 2007-01-24 Impact factor: 9.139