21.   The donated kidney is usually outside the body for a half hour or less, allowing it to begin functioning in its new body more quickly.

22.   The doctors say his kidneys are not functioning well but the medication they have given does not seem to help.

23.   The kidney is the most likely organ to suffer toxic effects from uranium.

24.   The other measured how quickly and efficiently the kidneys were able to remove creatinine.

25.   It said he may need to undergo dialysis later, in which impurities in the blood are artificially cleaned because the kidneys are not able to do it.

26.   Dialysis is used to remove impurities from the blood when the kidneys are no longer capable of doing so.

27.   The treatment is used to remove impurities from the blood when the kidneys are no longer capable of doing so.

28.   Radha Natarajan, an opthalmologist, said kidneys are not the only thing for sale -- blood, bone marrow and eyes are also available.

29.   The operation is used to remove impurities from the blood when the kidneys are no longer capable of doing so.