1. Carefully selected paid donors can serve as a source of safe blood;Strauss;Transfusion,1986
2. Directed blood donations;Dahlke;N Eng J Med,1984
3. Experience with 11,916 designated donors;Cordell;Transfusion,1986
4. Steward D, Grindon A: personal communication, October 1987
5. Kevy S: personal communication, October 1987