title: Free-range eggs?
authors: Anne
authors: A
authors: McLaren
mesh_terms: D000818:Animals; D002460:Cell Line; D033041:Embryo Research; D053595:Embryonic Stem Cells / Q000166:cytology* / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D051379:Mice; D053652:Nuclear Transfer Techniques; D018587:Oocyte Donation / Q000941:ethics; D010063:Ovum / Q000166:cytology* / Q000502:physiology; D013094:Spermatozoa / Q000166:cytology / Q000502:physiology