ABO and Lewis blood-groups and serum-cholesterol.
D000017:ABO Blood-Group System; D000328:Adult; D000367:Age Factors; D000368:Aged; D001789:Blood Group Antigens; D002784:Cholesterol / Q000097:blood*; D005260:Female; D006801:Humans; D007983:Lewis Blood Group Antigens; D008297:Male; D008875:Middle Aged; D014852:Wales
D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D007983:Lewis Blood Group Antigens; D002784:Cholesterol