HLA‐DR antigens and properdin factor B allotypes in responders and non‐responders to the Rhesus‐D antigen

Abstract
HLA‐DRw6 incidence was high in male responders to the Rhesus‐D antigen (50%) compared to male non‐responders (15.4%), P>0.02, P corrected N/S, pregnancy immunized females (23.1%) and a random population (26%). No Bf allotype frequency differences were found among these four groups.