A 'new', inherited, high-frequency blood group antigen has been named
PEL and is numbered 901014. Two PEL- propositi with anti-PEL have been
found, both French-Canadians. Two other French-Canadian propositi wit
h very weak expression of PEL on their red cells have an antibody, pro
visionally named anti-MTP, which does not react with PEL- cells.