Abstract
An automated blood-grouping system for all kinds of blood samples is described. The system is built upon Groupamatic 360 S and a separate mini-computer. The laboratory and the clerical work is automated. Blood group replies are given on colored punch cards in the Scandinavian blood group colors. Lists of different groups of samples can be compiled. After 1 yr of routine use, the refusal rate is about 5%. The system is reliable and rapid and permits saving of manpower and reagents.