User talk:Hsarkerlm

June 2013
Hello, I'm Materialscientist. I wanted to let you know that I undid one or more of your recent contributions to Opium replacement because it did not appear constructive. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Materialscientist (talk) 22:43, 5 June 2013 (UTC)