Authors: B H Cohen; E L Diamond; C G Graves; P Kreiss; D A Levy; H A Menkes; S Permutt; S Quaskey; M S Tockman Journal: Lancet Date: 1977-09-10 Impact factor: 79.321
Authors: R Peto; F E Speizer; A L Cochrane; F Moore; C M Fletcher; C M Tinker; I T Higgins; R G Gray; S M Richards; J Gilliland; B Norman-Smith Journal: Am Rev Respir Dis Date: 1983-09