title: [Plasma cyclic AMP and GMP levels in essential hypertension: interrelationship among plasma cyclic nucleotides sympathetic activity and renin-angiotensin system].
mesh_terms: D000242:Cyclic AMP / Q000097:blood*; D006152:Cyclic GMP / Q000097:blood*; D004837:Epinephrine / Q000097:blood*; D006801:Humans; D006973:Hypertension / Q000097:blood / Q000209:etiology*; D009638:Norepinephrine / Q000097:blood*; D012084:Renin-Angiotensin System
chemical_list: D000242:Cyclic AMP; D006152:Cyclic GMP; D009638:Norepinephrine; D004837:Epinephrine