MedlinePlus. Interactive Health Tutorials. [Web site]. http://www.nlm.nih.gov/medlineplus/tutorial.html . Updated April 18, 2012. Accessed July 30, 2015. MedlinePlus presents interactive health tutorials from the Patient Education Institute. Learn about the symptoms, diagnosis and treatment for a variety of diseases and conditions. Also learn about surgeries, prevention and wellness. Each tutorial includes animated graphics, audio and easy-to-read language.