Fig. 1.
Google Trends opioid searches (January 1, 2004 to December 31, 2011) and following year heroin ED rate (per 100,000 people), example of 2 cities.
Google Trends opioid searches (January 1, 2004 to December 31, 2011) and following year heroin ED rate (per 100,000 people), example of 2 cities.