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Beyond ABO

Discover the dozens of blood group systems beyond ABO and Rh

15 Questions Total

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About This Site

An educational resource to help the general public understand the complexity and diversity of blood groups beyond ABO and Rh.

Created by Experts for Everyone

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ISBT Blood Group Database
AABB (Blood Banking Association)

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References & Data Sources

• This site retrieves blood group system data directly from the ISBT API (cached daily)

• International Society of Blood Transfusion (ISBT) Blood Group Terminology

• AABB Technical Manual, 21st Edition

• Recent advances in rare donor identification (PMID: 40499009)

• NHS Blood and Transplant educational resources

This website provides educational information about blood groups for the general public. It is not medical advice. Always consult healthcare professionals for medical decisions.

© 2026 Blood Is More. Content based on established scientific literature.