Analysis of the sternum by micro-CT scanning from  Spag17 -/-  (-/-) mouse showing fusion of all vertebrae.
Teves M, Sundaresan G, Cohen D, Hyzy S, Kajan I, Maczis M, Zhang Z, Costanzo R, Zweit J, Schwartz Z, Boyan B, Strauss J
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<a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4446355/bin/pone.0125936.s007.mov">S3 Video</a> from <cite style="font-style:normal">Teves M, Sundaresan G, Cohen D, Hyzy S, Kajan I, Maczis M, Zhang Z, Costanzo R, Zweit J, Schwartz Z, Boyan B, Strauss J (2015). "<a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4446355">Spag17 Deficiency Results in Skeletal Malformations and Bone Abnormalities</a>". <i>PLOS ONE</i>. <a href="https://en.wikipedia.org/wiki/Digital_object_identifier" class="extiw" title="w:Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1371/journal.pone.0125936">10.1371/journal.pone.0125936</a>. <a href="https://en.wikipedia.org/wiki/PMID" class="extiw" title="w:PMID">PMID</a> <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pubmed/26017218">26017218</a>. <a href="https://en.wikipedia.org/wiki/PubMed_Central" class="extiw" title="w:PubMed Central">PMC</a>: <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4446355">4446355</a>.</cite>