Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleMurine inter-strain polymorphisms alter gene targeting frequencies at the mu opioid receptor locus in embryonic stem cells.AuthorsZhou L; Rowley DL; Mi QS; Sefcovic N; Matthes HW; Kieffer BL; Donovan DMPublicationMammalian genome : official journal of the International Mammalian Genome Society, 2001, Vol 12, Issue 10, p772ISSN0938-8990Publication typearticleDOI10.1007/s00335-001-1003-8