title: Ultrastructural study of the frog sympathetic ganglia.
mesh_terms: D000818:Animals; D001001:Anura / Q000033:anatomy & histology / Q000502:physiology*; D002395:Catecholamines / Q000378:metabolism; D005728:Ganglia, Sympathetic / Q000098:blood supply / Q000166:cytology* / Q000648:ultrastructure; D013569:Synapses / Q000502:physiology
chemical_list: D002395:Catecholamines