Development of synaptic contacts in the human brain at early stages of embryogenesis.
D001921:Brain / Q000196:embryology*; D005865:Gestational Age; D006801:Humans; D008854:Microscopy, Electron; D009454:Neurofibrils / Q000648:ultrastructure; D013569:Synapses / Q000648:ultrastructure; D013570:Synaptic Membranes / Q000648:ultrastructure; D013572:Synaptic Vesicles / Q000648:ultrastructure