Pioglitazone improves left ventricular diastolic function in patients with essential hypertension. - Horio,T.; Suzuki,M.; Suzuki,K.; Takamisawa,I.; Hiuge,A.; Kamide,K.; Takiuchi,S.; Iwashima,Y.; Kihara,S.; Funahashi,T.; Yoshimasa,Y.; Kawano,Y. (Am J Hypertens, 2005)