Authors: A Efstratiadis; J W Posakony; T Maniatis; R M Lawn; C O'Connell; R A Spritz; J K DeRiel; B G Forget; S M Weissman; J L Slightom; A E Blechl; O Smithies; F E Baralle; C C Shoulders; N J Proudfoot Journal: Cell Date: 1980-10 Impact factor: 41.582