It serves as a tributary of the Mississippi River. The combined Missouri-Mississippi river system is the fourth longest river in the world.http://www.usefultrivia.com/geography_tr... ------------The Missouri River is a tributary of the Mississippi River, and the longest river in the United States of America. The Missouri likely originates at Brower's Spring at the upper reaches of the Jefferson, before joining the confluence of the Madison, Jefferson, and Gallatin rivers in Montana.
A kidney transplant does not last for ever. The average life-span of a transplanted kidney is twelve years for a deceased donor kidney, and about 15 years for a living related transplant. The average for a living unrelated transplant is somewhere between the two.
People with end-stage kidney disease need either dialysis or a kidney transplant to stay alive. The average waiting time for a kidney from a deceased donor is 3-5 years. A kidney from a living donor offers patients an alternative to years of dialysis and time on the national transplant waiting list.