Documentary. Wide screen. Originally produced as individual episode of the television program NOVA in 2019. Program content: ©2020. Running time indicated on container: approximately 60 minutes; actual running time: 55 minutes. "This program contains graphic medical imagery, which may not be suitable for all audiences. Viewer discretion is advised." TV Parental Guidelines rating: TV-14 (contains some material that many parents would find unsuitable for children under 14 years of age). Original music, CheeWei Tay. Narrator, Jay O. Saunders. In English; English subtitles for the deaf and hard-of-hearing (SDH).