Fig. 2From: Proteinase K treatment improves RNA recovery from thyroid cells fixed with liquid-based cytology solutionThe effect of Proteinase K treatment on RNA recovery from CytoRichRed-fixed K1 cells. RNA was extracted from filter-trapped K1 cells after incubation with Proteinase K-containing and Proteinase K-free buffers for 3 h at 55 °CBack to article page