SPP1 and thoracic aortic aneurysm: Single-cell Profiling Reveals Cooperative Participation of &lt;i&gt;SPP1&lt;sup&gt;+&lt;/sup&gt;&lt;/i&gt; Myeloid and &lt;i&gt;POSTN&lt;sup&gt;+&lt;/sup&gt;&lt;/i&gt; Fibroblast Subsets in Inflammation and Remodeling in Thoracic Aortic Aneurysm.