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https://old.reddit.com/r/science/comments/6t81ig/handheld_spectral_analyzer_turns_smartphone_into/ ??? is it a tricorder?

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https://www.biosense.in/ucheck.php

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== Poop too ==

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https://noplacelikeanywhere.com/2016/09/12/bathroomsoftheworld-dutch-toilets-and-the-poop-shelf/

1,683

edits

Talk:Urine analysis (edit)