Prakapenka AV, Quihuis AM, Carson CG, Patel S, Bimonte-Nelson HA, Sirianni RW. Poly(lactic-co-glycolic Acid) Nanoparticle Encapsulated 17?-Estradiol Improves Spatial Memory and Increases Uterine Stimulation in Middle-Aged Ovariectomized Rats. Front Behav Neurosci. 2020; 14:597690.