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Radiographs of 1-year-old wild-type and heterozygous cmd mice. Head and spine were taken from mice killed with CO2 gas and were fixed by 10% buffered formalin. (Top) Control wild-type mouse. (Middle and Bottom) Two different heterozygous cmd mice. Arrow in the Middle indicates misalignment at C7∼Th1. In the lower panel, vertebral bodies show deformation.
