Authors: J A Thomson; J Kalishman; T G Golos; M Durning; C P Harris; R A Becker; J P Hearn Journal: Proc Natl Acad Sci U S A Date: 1995-08-15 Impact factor: 11.205
Authors: J A Thomson; J Itskovitz-Eldor; S S Shapiro; M A Waknitz; J J Swiergiel; V S Marshall; J M Jones Journal: Science Date: 1998-11-06 Impact factor: 47.728