11.   At the annual meeting of the American Society for Microbiology, held in Chicago last week, researchers from California reported finding the virus in apparently healthy blood donors.

12.   Barbara remains in the hospital and needs blood donors for more transfusions.

13.   Blood supplies were not adequate to treat survivors, and emergency agencies asked blood donors to come to hospitals.

14.   A call went out on the radio and television for blood donors.

15.   A fascinating study found that blood donors perceived significantly less discomfort when they were allowed to select the arm from which the blood would be drawn.

16.   A newly identified, potentially deadly strain of the hepatitis virus is circulating among American blood donors.

17.   A. Supposedly, if you have a tattoo you cannot be a blood donor, so you think about that.

18.   According to prosecutors, the Coblenz-based company UB Plasma repeatedly ignored information given by blood donors that suggested the donors might be carrying the AIDS virus.

19.   But a potential blood donor does not know who the recipient will be and cannot be guided by the obligations of a familiar connection.

20.   But experts say the only solution to the problem is to persuade more people to become blood donors.