In a long-term study of the health of the people of in the United States, the U.S. Public Health Service documented the chances of developing heart disease among various groups in the population. Long before the any symptoms appeared, epidemiological research could identify high-risk groups.

published Mar 28, 2018, 4:00:00 PM, by Michelle Jamrisko (Bloomberg) — Advertising spending’s almost-perfect record in tracking global growth could be shattered as big ad agencies are challenged by a changing industry landscape, according to global marketing firm Dentsu Aegis Network Ltd. Global ad spending has been a strong coincident