Viral marker rates among unpaid blood donors in Europe decreased from 1990 to 1996
Müller-Breitkreutz, K and Evers, T and Perry, R and for the Working Group on Quality Assurance of the European Plasma Fractionation Association, Eurosurveillance, 3, 114 (1998), https://doi.org/10.2807/esm.03.07.00114-en