An implantable pacemaker in the heart. IN: Medical electronics: Proceedings of the Second International Conference on Medical Electronics, Paris 24-27 June 1959. Edited by C. N. Smyth.

"This is the original report of the first fully implantable pacemaker that was designed by Elmqvist and surgically inserted under the skin of a patient in October 1958. It is an abstract of their presentation that signalled (along with events in Minneapolis) the birth of the modern pacemaker industry" (W. Bruce Fye).