optional, single

—

The element serves for the indication of the UDDF file <owner>'s blood group.

<personal>

—

<birthdate>, <birthname>, <membership/>, <firstname>, <height>, <lastname>, <middlename>, <numberofdives/>, <passport>, <sex>, <smoking>, <honorific>, <weight>

(see also <personal>)

<!-- blood group A -->
<bloodgroup>A</bloodgroup>