User talk:195.245.221.221

December 2019
Please do not add or change content, as you did at Methylene blue, without citing a reliable source. Please review the guidelines at Citing sources and take this opportunity to add references to the article. Thank you. Zefr (talk) 23:05, 21 December 2019 (UTC)
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.