https://phys.org/news/2018-07-dna-x-ray-military-variety-tools.html

Dog tags found with the remains can help, and even scraps of clothing can be traced to the material used in uniforms. Teeth can be matched with dental records. Bones can be used to estimate height. And the distinctive shape of a clavicle bone can be matched to records of X-rays taken decades ago to look for tuberculosis, said Charles Prichard, a spokesman for the Defense POW/MIA Accounting Agency.

If a DNA analysis is called for, samples are sent to a military DNA lab at Dover Air Force Base in Delaware.