Relation of myocardial fibrosis to circulating aldosterone and endothelin in primary and secondary human hypertension: an ultrasonic study by acoustic densitometry - Kozakova, Michaela; Buralli, Simona; Palombo, Carlo; Moretti, Angelica; Bernini, Giampaolo; Sudano, Isabella; Taddei, Stefano; Salvetti, Antonio (Journal of the American College of Cardiology (JACC), 2002)