CITATIONS

Term: osteoporosis
Http://: http://www.mayoclinic.com/health/osteoporosis/DS00128
Http://: http://en.wikipedia.org/wiki/Osteoporosis
Http://: http://www.niams.nih.gov/Health_Info/Bone/default.asp
Http://: http://www.nlm.nih.gov/medlineplus/ency/article/000360.htm