rhesus blood group

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A human blood group system with five main antigens, C, c, D, E, and e with the D antigen (rhesus factor, Rh) being the most important. Rhesus-positive (Rh+) cells have the D antigen, rhesus-negative cells (Rh) do not. Rh+ fetal cells can cross the placenta and sensitize a Rh mother; maternal anti-D antibody can then cause haemolytic disease of the newborn (erythroblastosis fetalis) in a subsequent pregnancy if the fetus is Rh+.

http://www.ncbi.nlm.nih.gov/projects/gv/mhc/xslcgi.cgi?cmd=bgmut/home The Blood Group Antigen Gene Mutation database.

Subjects: Medicine and Health.

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