Freyschmidt J, Fröhlich H, behrens S
Arch Orthop Unfallchir. 1976 Feb 26;84(1):67-76.
Method of direct geometrical X-ray magnification technique are discussed in the light of new technical possibilities,--fine-focus, high speed screen--and- the value in surgical X-ray diagnosis for the fine bone structure changes is demonstrated using practical examples. Also mentioned are other methods for a quirering a better form of diagnosis--such as for example the harmonising method.