31.   For two of her three years, as her condition steadily worsened, she had been waiting for a donor heart.

32.   If confirmed by larger and longer studies, the findings could help ease the shortage of donor hearts for thousands of desperately ill babies.

33.   On Thursday night, the couple received a telephone call informing them a donor heart was available.

34.   Some doctors, including Robert Higgins, chairman of cardiology at the Medical College of Virginia in Richmond, said artificial hearts are unlikely to replace donor hearts.

35.   The device was originally designed to keep patients alive until a donor heart could be located.

36.   The devices are used as a temporary measure to help patients survive while waiting for donor hearts.

37.   The researchers found evidence of the primitive cells with stem cell characteristics in the remnants of the old hearts, as well as in the donor hearts.

38.   Two other patients with end-stage heart failure have been implanted with the device and are waiting for donor hearts to become available.

39.   At present, donor hearts have to be transplanted within four hours of removal before tissue degeneration sets in and makes the organ unusable.

40.   South African scientists have discovered a revolutionary way to freeze donor hearts indefinitely while they await transplant operations, the SAPA news agency said Sunday.