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S1
(2005 June, Revised). Osteoporosis Overview [52 paragraphs]. NIAMS [On-line information]. Available FTP: http://www.niams.nih.gov/bone/hi/overview.htm

S2
(2005 November, Revised). Osteoporosis: The Diagnosis [14 paragraphs]. NIAMS [On-line information]. Available FTP: http://www.niams.nih.gov/bone/hi/osteoporosis_diagnosis.htm

S3
Amin, S. (2004 May, Updated). Osteoporosis [18 paragraphs]. American College of Rheumatology [On-line information]. Available FTP: http://www.rheumatology.org/public/factsheets/osteopor_new.asp?aud=pat

S4
(© 2006). Fast Facts [47 paragraphs]. National Osteoporosis Foundation [On-line information]. Available FTP: http://www.nof.org/osteoporosis/diseasefacts.htm

S5 (2005 October 5). Bone density test: Measure your risk of osteoporosis [20 paragraphs]. MayoClinic.com [On-line information]. Available FTP: http://www.mayoclinic.com/health/bone-density-tests/WO00024

S6
Sheryl L. Follin, Laura B. Hansen (Posted 05/01/2003) Current Approaches to the Prevention and Treatment of Postmenopausal Osteoporosis from American Journal of Health-System Pharmacy. Available FTP: http://www.medscape.com/viewarticle/453035

S7
WebMD A to Z Health Guide from WebMD: Medical Tests, Bone Scan (July 2006-Online information). Available FTP: http://www.webmd.com/hw/health_guide_atoz/hw200283.asp

S8
WebMD A to Z Health Guide from WebMD: Medical Tests, Bone Mineral Density (August 2006-Online information). Available FTP: http://www.webmd.com/hw/osteoporosis/hw3738.asp