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Unusual Capsule Could Help Spot Esophagus Cancer - WebMDWebMDJuly 21, 2015 -- Swallowing a capsule sponge on a string could help doctors detect a condition called Barrett's esophagus -- and the cancer that can result from it -- much more accurately than current methods, according to a new study in Nature Genetics.Pill on a string pulls early signs of cancer - GizmagGizmagPill on a string can detect throat cancer without need for biopsy - Telegraph ...Telegraph.co.uk'Pill on a string' could save thousands of lives with early cancer diagnosis ...NewsweekNewsmaxall 23 news articles »