Milad, Mohammed R Introduction to the special issue of Neurobiology of Learning and Memory on fear extinction. [electronic resource] - Neurobiology of learning and memory Sep 2014 - 1-2 p. digital Publication Type: Editorial; Introductory Journal Article ISSN: 1095-9564 Standard No.: 10.1016/j.nlm.2014.04.004 doi Subjects--Topical Terms: AnimalsExtinction, Psychological--physiologyFear--physiologyHumans