Transfer of material between adjacent cells.
D000596:Amino Acids / Q000378:metabolism*; D000818:Animals; D001369:Axons / Q000378:metabolism*; D001923:Brain Chemistry; D003530:Cyprinidae; D007758:Ear, Inner / Q000378:metabolism*; D004848:Epithelium / Q000378:metabolism; D009435:Synaptic Transmission; D014316:Tritium
D000596:Amino Acids; D014316:Tritium