. Archives of physical medicine and rehabilitation . Fit9 Cross Section, ofra^fiaied Volume. Fie/di. Front,back Ii tiScm. n(,2M ft Cmr Focus-skirt distance 3o cm Absorption coefficient Cross Seciiorv of Radiated Z4iiScm^. Ritjht-left Zl-f-lcm^FocuiSkin distance 30 on .Absorpticn. CoeFficifnf- FIG. 10 ■^ ^ Cross section of RaUlaied : front^ X ncjhtjeff I0%2(,.licFocuSSkin distance Coefficifnt ^9

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Keywords: ., bookauthoramerican, bookcentury1900, bookdecade1920, bookyear1920