Persistent Dyskinesia

Abstract
The first three cases of tardive dyskinesia were described in a brief communication by Schonecker (1957), and in the following ten years some 600 new cases were reported in 37 papers. Since the literature up to 1967 has been reviewed by Ayd (1967a) and myself (1968a), this communication will deal mainly with the publications of the last five years. I will also report a few personal observations of the last two years, hitherto unpublished.