Authors: R Denman; C Weitzmann; P R Cunningham; D Nègre; K Nurse; J Colgan; Y C Pan; M Miedel; J Ofengand Journal: Biochemistry Date: 1989-02-07 Impact factor: 3.162
Authors: J H Gunderson; M L Sogin; G Wollett; M Hollingdale; V F de la Cruz; A P Waters; T F McCutchan Journal: Science Date: 1987-11-13 Impact factor: 47.728