<?xml version="1.0" standalone="yes"?>
<controlled_vocabulary db_table="ArrayLayout" db_column="medium" cv_table="AL_Medium">
  <comment type="definition">Referred to in the Array Layout Spots table and used to describe the medium on which the the probe is deposited	
</comment>
<term name="glass_slide"
        description="user sequence features are spotted on a rigid silicon-based support medium"/>
<term name="nylon_membrane"
        description="user sequence features are spotted on a nylon-coated flexible medium"/>
<term name="nitrocellulose"
        description="user sequence features are spotted on a nitrocellulose medium"/>
<term name="gel_sieve"
        description="target sequence features are separated through a size sieving procedure"/>
<term name="mag_bead"
        description="target sequence features are separated by magnetic bead attachment"/>
<term name="sequence_instance"
        description="target sequence features are  sequenced fragments whose frequency of occurrence is recorded"/>
</controlled_vocabulary>

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