Temporal factors in the extinction of fear in inbred mouse strains differing in extinction efficacy
Biology of mood & anxiety disorders (2013) - Comment
pubmed: 23830244  doi: 10.1186/2045-5380-3-13  issn: 2045-5380 

Kathryn MacPherson, Nigel Whittle, Marguerite Camp, Ozge Gunduz-Cinar, Nicolas Singewald, Andrew Holmes