Wang ZM, Rodrigues ACZ, Messi ML, Delbono O. Aging Blunts Sympathetic Neuron Regulation of Motoneurons Synaptic Vesicle Release Mediated by ß1- and a2B-Adrenergic Receptors in Geriatric Mice. J Gerontol A Biol Sci Med Sci. 2020 07 13; 75(8):1473-1480.