title: Hippocampal mossy fiber development at the ultrastructural level.
mesh_terms: D000367:Age Factors; D000818:Animals; D001369:Axons / Q000648:ultrastructure; D006624:Hippocampus / Q000166:cytology / Q000254:growth & development* / Q000648:ultrastructure; D051381:Rats; D013569:Synapses / Q000648:ultrastructure