John Grefenstette

University of Pittsburgh Graduate School of Public Health
Academic Institution
Pittsburgh, PA
USA
Email: gref@pitt.edu

Papers:
112 The Impact of Childhood Vaccination Programs in the United States: Analysis of 125 Years of Weekly Disease Surveillance
Project Tycho, Data for Health: Open Access to Newly Digitized United States Weekly Nationally Notifiable Disease Surveillance Data from 1888 to the Present