Whenever possible, patients without CMV infection should be given organs and/or blood products that are free of the virus.

Germ layers will eventually give rise to all of an animal's or mammal's tissues and organs through a process called organogenesis.

The new rule, he said, "is the first introduction of a policy of giving organs to those who are most likely to benefit."

Despite these steps, loopholes still exist in current laws that allow non-related donors to give organs if they are emotionally close to the recipient.

Since only a small portion reaches the brain, heavy doses must be given, leading other organs of the body to overproduce dopamine.

In 1985, doctors at the Medical College of Virginia gave four people organs from the dead man - his heart, liver and both kidneys.

Some of the family coordinators' relatives have given or received organs.

These studies give information about how quickly a drug will be cleared from the hepatic blood flow, and organs of the body.

His death gave nine people vital organs.

Doctors estimate that only 10 to 30 percent of the brain-dead patients who qualify as donors give organs.