#lan_blood_group_system
Lan blood group system
Human blood group system
The Lan blood group system is a human blood group defined by the presence or absence of the Lan antigen on a person's red blood cells. More than 99.9% of people are positive for the Lan antigen. Individuals with the rare Lan-negative blood type, which is a recessive trait, can produce an anti-Lan antibody when exposed to Lan-positive blood. Anti-Lan antibodies may cause transfusion reactions on subsequent exposures to Lan-positive blood, and have also been implicated in mild cases of hemolytic disease of the newborn. However, the clinical significance of the antibody is variable. The antigen was first described in 1961, and Lan was officially designated a blood group in 2012.
Sun 10th
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