. The principles and practice of roentgenological technique . Fig. 237.—Lower dor.^al and lumbar spine.(Radiograph.) 168 SACRUM. Fig. 237a.—L equals centering point for lumbarspine. \ line at lower border tenth equals centering point for lumbar sacral spine,one inch below highest point of iliac crest.

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Keywords: ., bookcentury1900, bookdecade1920, booksubjectradiogr, bookyear1920