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Mark R. Filippi, D.C.
Journal of Vertebral Subluxation Research ~ Volume 4 ~ Number 1 ~ October 2000
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Abstract
Way back in the dark ages, before X-rays could be digitally assessed, prehistoric chiropractic students like me spent their Sunday evenings this close to the humming glare of a viewbox, making lines on the shadowy images of various regions of the spine. We were instructed to locate something called “like points” on each film and then take our rolling chiropractic straightedge and basically connect the dots.