Tuberculosis (TB) Fact Sheets. (2014). Centers for Disease Control and Prevention. US Dept of Health and Human Services. Retrieved 12/2014 from http://www.cdc.gov/tb/topic/testing/.
Tuberculosis (TB) Fact Sheets. (2014). Centers for Disease Control and Prevention. US Dept of Health and Human Services. Retrieved 12/2014 from http://www.cdc.gov/tb/topic/testing/. Accessed 6/5/15 and 6/11/15.
Preparing Your Child for a Blood Test: FAQs, Boston Children's Hospital 300 Longwood Avenue, Boston, MA 02115. Accessed 6/11/15.
https://labtestsonline.org/understanding/analytes/tb-skin/tab/test/. Accessed 6/11/15.
http://www.who.int/topics/tuberculosis/en/. Accessed 06/11/15.