User talk:MUC-InnOvation

March 2016
Please do not add or change content, as you did at Heart rate variability, without citing a reliable source. Please review the guidelines at Citing sources and take this opportunity to add references to the article. Please don't re-add the list of apps without discussion on the talk page. —S MALL  JIM   17:35, 16 March 2016 (UTC)