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。

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The National Osteoporosis Foundation says a test called Dual-energy X-ray absorptiometry,or DXA, is the best test for osteoporosis.

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