Cardiology / Randomization / Comparative Study / Right / Prospective studies / Humans / Female / Derecho / Male / Follow-up studies / Aged / Middle Aged / Coronary Angiography / Public health systems and services research / Gauche / Reproducibility of Results / Coronary Artery Disease / Contrast Media / The American / Radial Artery / Humans / Female / Derecho / Male / Follow-up studies / Aged / Middle Aged / Coronary Angiography / Public health systems and services research / Gauche / Reproducibility of Results / Coronary Artery Disease / Contrast Media / The American / Radial Artery