Authors: I M Roitt; A Cooke; D K Male; F C Hay; G Guarnotta; P M Lydyard; L P de Carvalho; Y Thanavala; J Ivanyi Journal: Lancet Date: 1981-05-09 Impact factor: 79.321
Authors: K Stefansson; M L Molnar; L S Marton; G K Molnar; M Mihovilovic; R C Tripathi; D P Richman Journal: Nature Date: 1984 Feb 9-15 Impact factor: 49.962