[Coronary vessel tonus].
D000328:Adult; D000367:Age Factors; D000368:Aged; D003327:Coronary Disease / Q000503:physiopathology; D003331:Coronary Vessels / Q000187:drug effects / Q000502:physiology*; D004548:Elasticity; D006801:Humans; D008875:Middle Aged; D009129:Muscle Tonus / Q000187:drug effects; D009131:Muscle, Smooth, Vascular / Q000502:physiology; D005996:Nitroglycerin / Q000494:pharmacology; D014665:Vasodilator Agents / Q000494:pharmacology
D014665:Vasodilator Agents; D005996:Nitroglycerin