User talk:2A00:23C6:7203:B000:51EA:E720:B897:46B7

April 2021
Hello, I'm Coolperson177. An edit that you recently made to History of cancer chemotherapy seemed to be a test and has been reverted. If you want to practice editing, please use the sandbox. If you think a mistake was made, or if you have any questions, you can leave me a message on my talk page. Thanks! Coolperson177 (talk) 17:04, 28 April 2021 (UTC)