Keywords
nifedipine; diagnostic agent; nifedipine; pertechnetic acid tc 99m; brain blood flow; brain circulation; hemodynamics; human; hypertension; vascular resistance; adult; aged; article; brain circulation; dose response; drug effect; drug screening; hypertension; pathophysiology; physiology; scintiscanning; time; Aged; Cerebrovascular Circulation; Dose-Response Relationship, Drug; Drug Evaluation; English Abstract; Hemodynamics; Human; Hypertension; Middle Age; Nifedipine; Sodium Pertechnetate Tc 99m; Time Factors