References

1. Daniels GL et al. The VS and V blood group polymorphisms in Africans: a serologic and molecular analysis. Transfusion, 1998. [Citation] [RHeference]
2. Singleton BK et al. The presence of an RHD pseudogene containing a 37 base pair duplication and a nonsense mutation in africans with the Rh D-negative blood group phenotype. Blood, 2000. [Citation] [RHeference]