Hello, and welcome to Wikipedia. Although everyone is welcome to contribute to Wikipedia, at least one of your recent edits, such as the one you made to Charles R. Drew, did not appear to be constructive and has been reverted or removed. Please use the sandbox for any test edits you would like to make, and read the welcome page to learn more about contributing constructively to this encyclopedia. Abhijay (☎ Talk) (✐ Deeds) 05:01, 13 February 2012 (UTC)
Hello, I'm Walter Görlitz. I noticed that you made a change to an article, 2022 FIFA World Cup, but you didn't provide a reliable source. It's been removed for now, but if you'd like to include a citation and re-add it, please do so! If you need guidance on referencing, please see the referencing for beginners tutorial, or if you think I made a mistake, you can leave me a message on my talk page. Thank you. Walter Görlitz (talk) 01:55, 6 January 2014 (UTC)
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