User talk:Karina12345678910

December 2013
Hello, I'm Dwpaul. I wanted to let you know that I undid one or more of your recent contributions to Human lung because it did not appear constructive. If you would like to experiment, please use the sandbox. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks!  Dwpaul  Talk   04:43, 13 December 2013 (UTC)