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Comparison of WT and Sp2-cKO mouse embryos via Ag-doped IR-MALDESI imaging. a Box plot of averaged and normalized ion abundances of m/z 491.2457 (desmosterol or other cholesterol precursor) from dorsolateral cortex (N = 24). b IR-MALDESI imaging of 491.2457 m/z ion in coronal brain sections from WT and Sp2-cKO embryos
