Doctors warn that freed hostages risk refeeding syndrome, a life-threatening imbalance first seen after the Holocaust.

Family of Leah (Lucy) Dee meets for the first time with the woman who received their slain mother’s heart in a transplant.

'Our goal is to change the world and change the face of modern transplantation medicine,' said Dr. Shahar Cohen, one of the technology's inventors.

Rabbi Gadot made history in Israel as the first person to donate separate organs to two different people.