ross Blood Services, New England Region, Maine, Massachusetts, New Hampshire, Vermont". American Red Cross Blood Services – New England Region. 2001. June 21, 2008 දින මුල් පිටපත වෙතින් සංරක්ෂණය කරන ලදී. සම්ප්‍රවේශය 2008-07-15. there are more than 600 known antigens besides A and B that characterize the proteins found on a person's red cells↑ Dean 2005, The ABO blood group "... A number of illnesses may alter a person's ABO phenotype ..."↑ Stayboldt C, Rearden A, Lane TA (1987). "B antigen acquired by normal A1 red cells exposed to a patient's serum". Transfusion. 27 (1): 41–4. doi:10.1046/j.1537-2995.1987.27187121471.x. PMID 3810822.{{cite journal}}:  CS1 maint: multiple names: authors list (link)↑ Matsushita S, Imamura T, Mizuta T, Hanada M (November 1983). "Acquired B antigen and polyagglutination in a patient with gastric cancer". The Japanese Journal of Surgery. 13 (6): 540–2. doi:10.1007/BF02469500. PMID 6672386.{{cite journal}}:  CS1 maint: multiple names: authors list (li