FIGURE 1.
ABO subtype antigens: A‐subtype I–VI, B‐subtype I–VI, and H‐subtype I–VI (Symbol Nomenclature for Glycans 36 )
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.