Fig. 3.
Variation in the number of RhD peptides that stimulate PBMCs from alloimmune donors to proliferate is strongly correlated with the level of anti-D antibody in their serum.
Shown is the relation (Rs = 0.75; P < .003) between the number of RhD peptides that elicited proliferation of PBMCs from each of the deliberately alloimmunized donors (1-13) and the level of anti-D antibody in their serum. If antibody concentrations were measured more than once during the period in which PBMC samples were obtained, the highest level was recorded.