Authors: M Botto; C Dell'Agnola; A E Bygrave; E M Thompson; H T Cook; F Petry; M Loos; P P Pandolfi; M J Walport Journal: Nat Genet Date: 1998-05 Impact factor: 38.330
Authors: M F Pittenger; A M Mackay; S C Beck; R K Jaiswal; R Douglas; J D Mosca; M A Moorman; D W Simonetti; S Craig; D R Marshak Journal: Science Date: 1999-04-02 Impact factor: 47.728