Information compiled from the NNLM course Health Statistics on the Web, by Erin Seger, MPH, CHES. Slides for the 1-hour course
Nnlm.gov. (2018). Health Statistics on the Web | NNLM. [online] Available at: https://nnlm.gov/classes/health-statistics-web [Accessed 14 Sep. 2018].