Authors: N G Copeland; N A Jenkins; D J Gilbert; J T Eppig; L J Maltais; J C Miller; W F Dietrich; A Weaver; S E Lincoln; R G Steen Journal: Science Date: 1993-10-01 Impact factor: 47.728
Authors: O Reiner; R Carrozzo; Y Shen; M Wehnert; F Faustinella; W B Dobyns; C T Caskey; D H Ledbetter Journal: Nature Date: 1993-08-19 Impact factor: 49.962