title: Gene targeting in mouse embryonic stem cells.
mesh_terms: D000818:Animals; D018929:Cell Culture Techniques; D018274:Electroporation; D033041:Embryo Research; D005347:Fibroblasts; D018390:Gene Targeting / Q000379:methods*; D051379:Mice; D013234:Stem Cells / Q000166:cytology* / Q000378:metabolism*