User talk:72.74.166.33

July 2023
Please do not add or change content, as you did at Atrial fibrillation, without citing a reliable source. Please review the guidelines at Citing sources and take this opportunity to add references to the article. ''... and Macrophage. The source added is in vitro research and speculation. See WP:MEDINVITRO.'' Zefr (talk) 15:40, 15 July 2023 (UTC)