the Georgia Department of Public Health ; written, directed and produced by George C. Stoney for the Medical Audio-Visual Institute of the Association of American Medical Colleges
written by Stephen Lyons & Llewellyn M. Smith ; directed by Llewellyn M. Smith ; produced by Llewellyn M. Smith, Stephen Lyons ; a Nova production for WGBH Boston ; WGBH Educational Foundation
Paramount ; a Brooksfilms production ; screenplay by Christopher DeVore, Eric Bergren, David Lynch ; produced by Jonathan Sanger ; directed by David Lynch
Bay Area Video Coalition ; Intrepid Productions ; director, Richard Schmiechen ; producer, David Haugland ; writers, Richard Schmiechen & James Harrison