'Reprinted from "Applied neurophysiology" Vol.41, no.1-4 (1978)' - title page verso.
Proceedings of the Seventh Symposium of the International Society for Research in Stereoencephalotomy, Sao Paulo, June 24, 1977. ISBN 3805529465. Published by Karger in 1978. Publication and catalogue information, links to buy online and reader comments.