CITATIONS

Term: head and neck cancer
Http://: http://apps.who.int/bookorders/anglais/detart1.jsp?sesslan=1&codlan=1&codcol=70&codcch=9
Http://: http://www.cancer.gov/cancertopics/factsheet/Sites-Types/head-and-neck
Http://: http://www.cancer.gov/dictionary?CdrID=257519
Http://: http://en.wikipedia.org/wiki/Head_and_neck_cancer