Fingas, Jon (February 3, 2020). "YouTube Premium and Music have 20 million subscribers". Dickey, Megan Rose (February 15, 2013). "The 22 Key Turning Points in the History of YouTube". McAllister, Neil (May 9, 2013). "YouTube launches subscriptions with fifty three paid out channels". Hypersexuality may perhaps also current as a side effect of medicine these as medicine utilised to address Parkinson's condition. Waterson, Jim (May 28, 2018).