co-produced by Frontline and Hedrick Smith Productions ; senior producer, Hedrick Smith ; producer, Marc Shaffer ; director, Rick Young ; guide written by Aruna Jain [and others]
a Nova production co-produced by Pioneer Film and Television Productions Limited with China International TV Corporation with CCTV-10 and PAAN Media Holdings Co. Limited, with KBS Korea in association with PBSd, for WGBH and KBS ; series director, Kate Dart ; senior series producer, Melanie Wallace
a co-production of Thirteen for WNET.org and Mannes Productions, Inc. in association with ARTE/France, NDR, Australian Broadcasting Corporation with the participation of YLE ; Louise Rosen Ltd. ; a film by Elena Mannes ; executive producers, Elena Mannes, Margaret Smilow ; written and directed by Elena Mannes
director, Tad Fettig ; series producer, Elizabeth Westrate ; senior producer, Beth Levison ; producer, Midori Willoughby ; narration writer, Mark Decena ; production of Kontentreal Production
HBO Documentary Films and the National Institute on Aging of the National Institutes of Health ... present ; executive producers, Sheila Nevins, Maria Shriver ; series producer, John Hoffman