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The Raman spectrum of a microsubstance, smeared on a fiber coming from the Shroud of Turin, was compared with numerous spectra published for old or modern pigment dyes, whole bloods, dried bloods, red blood cells, albumin, very ancient blood stains, and various "degradation" products of heme. Within the wavenumber measure accuracy, it is shown that all(More)
Physicians or hospital administrators must consider many factors in the purchase of single-photon emission computed tomography systems. This article summarizes justification of purchase by forecasting SPECT use and developing pay-back scenarios, specification of equipment, development of purchase agreements and acceptance testing, and management of the(More)
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