1.   Although these kidneys worked well, we had to do a trial run on a cadaver.

2.   Both studies concern dialysis, the treatment given several times a week to cleanse the blood of waste products that build up when the kidneys do not work.

3.   To achieve that, the kidneys must work overtime.

4.   But Chevenement was still in intensive care and on dialysis, a technique used to remove waste products from the blood when the kidneys no longer work properly.

5.   Hospital spokesman Tamar Ashkenazi said shortly after the operations that the both couples were doing well and both donated kidneys are working.

6.   The new liver was draining properly and his kidneys were working again, lead transplant surgeon Dr. Robert Goldstein said in a news conference on Thursday afternoon.

7.   The researchers speculated that the cadaver kidneys work less well because they are sometimes damaged or diseased.