Some of the folks here at this site have had the opportunity to meet the Stenzel twins (both double-lung transplant recipients) at past "Transplant Games" over the years, or have watched their excellent documentary film "The Power of Two". Anabel has died due to intestinal cancer (her transplanted lungs served well until the end.) An article on her life and death can be found in the "San Francisco Chronicle"of Oct. 23, 2013.
www.sfgate.com/bayarea/article/Anabel-Stenzel-Organ-Transplant-Advocate-Dies
The movie can be purchased on DVD or downloaded at www.thepoweroftwomovie.com
Fr. Pat