Among his final words in the day before dying, the church said, were "thank you." That's what Francis, 88, told his longtime health aide, Massimiliano Strappetti, a nurse whom the pope has said ...

The inner layer of the FUSION graft is comprised of extruded, expanded polytetrafluoroethylene (ePTFE). The outer layer is a knit polyester textile, polyethylene terephthalate (PET).

His last public words were made "Urbi et Orbi", which means "to the city and the world", and were published yesterday, April 20, before the Pope's death was announced this morning. Francis read ...