NEW YORK (Reuters Health) – People who need a new kidney may need to look no farther than across the dining room table, according to a new study that shows that spouses are good potential sources for so-called "living-unrelated organ donation." Due to a worldwide shortage of organs available for transplant from people who have died, "living organ donors" have become a major source of organs for transplantation. And while a "well-matched" donor organ from a sibling, parent or other close relative has the highest likelihood of surviving in the recipient, there is also evidence that organs from "living-unrelated donors"...