As researchers study hearts they have stripped down to their underlying structure, they move closer to growing living, functioning versions.
The Organ Builder
Joseph Vacanti has already engineered skin and bone, but what he really hopes is to grow whole, functional organs.
In Framingham, Deep Cuts
Having run for more than 50 years, the Framingham Heart Study is in jeopardy because of deep budget cuts.
Proto readers share their thoughts on veterinary medicine, medical journals and hospital mergers.