Equipment that is useful for illuminating {HEAD ~ the dye compounds} of the invention includes, but is not limited to, hand held ultraviolet lamps, {TAIL ~ mercury arc lamps}, xenon lamps, lasers and laser diodes 
Equipment that is useful for illuminating { HEAD ~ the dye compounds } of the invention includes , but is not limited to , hand held ultraviolet lamps , { TAIL ~ mercury arc lamps } , xenon lamps , lasers and laser diodes
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