An appraisal of echocardiography as an epidemiological tool. The Strong Heart Study.
Devereux RB, Roman MJ, Liu JE, Lee ET, Wang W, Fabsitz RR, Welty TK, Howard BV. An appraisal of echocardiography as an epidemiological tool. The Strong Heart Study. Ann Epidemiol. 2003 Apr; 13(4):238-44.