arrow ACOG Education Pamphlet - ACOG
arrow Osteoporosis - Mayo Clinic
arrow Osteoporosis - Medline Plus
arrow Osteoporosis: A debilitating disease that can be prevented and treated - National Osteoporosis Foundation
arrow Patient information: Osteoporosis prevention and treatment - UpToDate

Calcium and Vitamin D

arrow Calcium-Rich Diet - Stronghealth.com
arrow Dietary Supplement Fact Sheet - Office of Dietary Supplements