Referencias

• “Hepatitis A Questions and Answers for the Public.” Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, 22 Dec. 2015. Web. 31 May 2016.
• “Hepatitis A Vaccine” Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, 11 Oct. 2011 Web. 31 May 2016.
• “Hepatitis B FAQs for the Public” Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, 23 Oct. 2015. Web. 31 May 2016.
• “Hepatitis C FAQs for the Public.” Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, 18 Jan. 2015. Web. 31 May 2016.
• “Vaccine Information” Every Week Hundreds of People get Hepatitis B. <www.immunize.org/catg.d/p4112.pdf>
• “What is Viral Hepatitis?” Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, 16 June 2015. Web. 31 May 2016.