As Amy Dockser Marcus suggests in “The Unfulfilled Promise of DNA Testing” (page one, May 18), making sense of the terabytes of information we can obtain from genetic testing is the current frontier in genomic science. This understanding will lead to much broader and more effective use of genetic technologies. We need to determine how to best utilize genetic information in patient care. We can gain this knowledge only by testing large numbers of people—diseased and well—and correlating their physical conditions with their...

Source: Wall Street Journal May 27, 2019 18:07 UTC