Your Query returns 11 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Col9a2NM_00774110090Col9a-2    120260
COL9A2M956109606120260
COL9A2AF0194069606120260
COL9A2AL0503419606120260
COL9A2AY3995919606120260
COL9A2AY3995929598
COL9A2AY39959310090120260
COL9A2NM_0018529606MED    EDM2    DJ39G22.4    120260
Col9a2NT_03926510090120260
Col9a2BC02969710090120260
COL9A2NT_0329779606120260

Search Again
* OMIM link based on symbol match for human and mouse.

Google

Text2Knowledge ... Yong Huang 2002