First Level Testing of Dw8 HTC
At the invitation circulated by one of us (A.S.) from Copenhagen, nine laboratories (Table 1) submitted DRw8 homozygous typing cells (HTC) to the Ninth Workshop Dw8 First level testing phase which was to be carried out in Copenhagen and Caracas. Four of the laboratories included also several DRw8 heterozygous cells to be used as control responders in the mixed lymphocyte experiments (MLC). A total of 12 HTC and 19 DRw8+ controls were thus available. The HTC from Leiden and the heterozygous cells from Minneapolis, Oslo, and Lyon were not sent to Caracas.
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