*References:
Liou, Willisa, Hans J. Geuze, and Jan W. Slot. "Improving structural integrity of cryosections for immunogold labeling." Histochemistry and cell biology 106 (1996): 41-58.
Peters, Peter J., Erik Bos, and Alexander Griekspoor. "Cryo‐immunogold electron microscopy." Current protocols in cell biology 30.1 (2006): 4-7.