obsolescence reason specification terms merged An editor note should explain what were the merged terms and the reason for the merge. The deprecated term should reference the merged term with obo:IAO_0100001. The replacement term should reference the original terms as sources using obo:RO_0001000 (derives_from). An editor note should explain what were the merged terms and the reason for the merge. The term has been combined with one or more other terms to create a more encompassing (merged) term. terms merged