Normal standards for computer-ECG programs for prognostically and diagnostically important ECG variables derived from a large ethnically diverse female cohort: the Women's Health Initiative (WHI).
Rautaharju PM, Zhang ZM, Gregg RE, Haisty WK, Z Vitolins M, Curtis AB, Warren J, Horacek MB, Zhou SH, Soliman EZ. Normal standards for computer-ECG programs for prognostically and diagnostically important ECG variables derived from a large ethnically diverse female cohort: the Women's Health Initiative (WHI). J Electrocardiol. 2013 Nov-Dec; 46(6):707-16.