Abnormal myocardial perfusion in hypertrophic cardiomyopathy: preliminary findings of a cardiovascular MRI study by Lee Ting-Yim, So Aaron, Harper-Little Cyndi, MacDonald Anna, Verschuur Ivonna, Wisenberg Gerald, Rambihar Sherryn, Armstrong Sarah, Al-Admawi Mohammed, White James A, Prato Frank, Thomspon Terry