Table 2. Pools of lentivectors injected.

Pool	Number of vectors	LacZ positive embryos	Total embryos	Average number of different clones integrated	Average number of different clones integrated: LacZ embryos
pool A	9	5	31	3.1	5.0
pool B	10	16	43	3.1	4.0
pool C	10	2	39	0.5	3.0
pool D	10	21	40	4.8	7.0
pool E	10	4	42	0.4	2.0
pool F	20	16	52	2.0	3.8
pool G	20	12	54	0.9	2.3
pool H	20	8	88	2.2	6.1
Total	109	84	389	2.1	4.2

Summary of injected pools.