%0 Journal Article %A Martin Evans %A Susan Hunter %T Source and nature of embryonic stem cells %J Comptes Rendus. Biologies %D 2002 %P 1003-1007 %V 325 %N 10 %I Elsevier %R 10.1016/S1631-0691(02)01527-5 %G en %F CRBIOL_2002__325_10_1003_0