. . "Video recordings for the hearing impaired"@en . "Documentary"@en . . . . . . . "Life (part 2). Episode 12, Pioneer in aging, Dr. Robert Butler"@en . . . . "Hear from the founding director of the National Institute on Aging on the progress we've made in supporting America's aging population."@en . "Pioneer in aging, Dr. Robert Butler"@en . . . "Documentary television programs"@en . . . . . . . "Aging." . . . . "Middle aged persons United States." . . "Baby boom generation United States." . .