The NOF says a test called Dual-energy X-ray absorptiometry, or DXA, is the best test for osteoporosis.DXA uses radiation from x-rays.

• 国家骨质疏松基金会说，一种叫作双重能量X射线吸光测定法，或是DXA是用来诊断骨质疏松症的最佳途径。