NOTCH1 and Ehlers-Danlos syndrome, musculocontractural type: NOTCH1 protein expression was analyzed by IHC in 43 of the 54 thyroid cancer samples in which DEC1 was previously analyzed: ATCs n = 4, PDTC n = 5, PTC n = 27, FTC n = 6 (Supplementary Figure 6A-F).