Loss of axon terminals contacting neuronal somata in the dentate gyrus of aged rats.
D000375:Aging; D000818:Animals; D001369:Axons / Q000648:ultrastructure*; D006624:Hippocampus / Q000033:anatomy & histology*; D008297:Male; D008854:Microscopy, Electron; D009474:Neurons / Q000648:ultrastructure; D051381:Rats; D011916:Rats, Inbred F344; D013569:Synapses / Q000648:ultrastructure