Response by Ahmad et al to Letter Regarding Article, "Validity of Cardiovascular Data From Electronic Sources: The Multi-Ethnic Study of Atherosclerosis and HealthLNK". Issue 16 (17th April 2018) - Ahmad, Faraz S.; Chan, Cheeling; Rosenman, Marc B.; Post, Wendy S.; Fort, Daniel G.; Greenland, Philip; Liu, Kiang J.; Kho, Abel N.; Allen, Norrina B.