1. Purdue University: For more information about Purdue University, please visit http://www.purdue.edu.
2. Medicine & Science in Sports & Exercise: It is a multidisciplinary journal featuring original investigations, clinical studies, and comprehensive reviews on current topics in sports medicine and exercise science. With this multidisciplinary journal, exercise physiologists, physiatrists, physical therapists, team physicians and athletic trainers get a vital exchange of information from basic and applied science, medicine, education, and allied health fields. For more information, please check out its homepage at http://www.ms-se.com.
3. digestive system: The digestive system is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. Inside this tube is a lining called the mucosa. In the mouth, stomach, and small intestine, the mucosa contains tiny glands that produce juices to help digest food. For more information about the digestive system, please see http://www.niddk.nih.gov/health/digest/pubs/digesyst/newdiges.htm.
4. blood protein level: Please visit the web page at http://www.studentcentral.co.uk/coursework/essays/885.html to learn more about the composition and functions of blood.
5. Vitamin C: To find out how Vitamin C works, you can check out the web page at http://www.howstuffworks.com/vitamin-c.htm.
