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We found 1 questions associated with the 'Secretin' topic.
Posted 10 Mar 2018 by • 0 answers
I woke up to a black inky like substance running down my bottom lip, it wasn't blood, and it literally looked as if it was black ink. It came off easily, but I just don't know what would have caused it. It had to come out of my mouth because there were was nothing I could have rubbed ...