Analysis of the sternum by micro-CT scanning from  Spag17 -/-  (-/-) mouse showing fusion of vertebrae S2, S3 and S4.
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.s006.mov">S2 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>