Seasonal Changes of Androgen Receptor, Estrogen Receptors and Aromatase Expression in the Medial Preoptic Area of the Wild Male Ground Squirrels (Citellus Dauricus Brandt). Eur J Histochem 2016, 60 (2). https://doi.org/10.4081/ejh.2016.2621.