a NOVA production by Erikson & Nilsson Production in association with WGBH/Boston ... [and others] ; medical photography, Lennart Nilsson ; produced, written by Julia Cort
produced by Swedish Television in association with WGBH Boston ; directors and producers, Bo G. Erikson, Carl O. Lofman ; for NOVA, written and produced by Bebe Nixon
a co-production between Swedish Television (in association with WGBH Boston) and ZDF/Arte and Channel Four (in association with RA1 3, NPS, NRK, TV2 Denmark and YLE 1) ; photography, Lennart Nilsson ; directors and producers, Mikael Agaton, Thomas Friedman, Lars Rengfelt ; written by Thomas Friedman ; executive producers Paula S. Apsell and Bo G. Erikson