Citations for IBISWorld

Alvarez, Andrew. "IBISWorld Industry Report 71394 Gym, Health, and Fitness Clubs in the US." October 2016. 1-34. IBISWorld. 

Citations for Simmons OneView

Simmons Research. Fall 2013 National Household Consumer Survey adult survey 6-month. 2013. Simmons OneView. 

Citations for Mergent Intellect

Mergent. Stryker Corporation: Financial details - income statement. 2016. Mergent Intellect Database. 

Citations for Policy Map

Estimated percent of all people age 18-34 between 2011-2015. PolicyMap. (based on data from U.S. Census) 

Citations for Mintel

Author's Last Name, Author's First Name. "Title of Report." Date of Publication. Mintel.

Wong-Li, Carol. "Marketing to Millennials - Canada - January 2016." Jan. 2016. Mintel

Citations for eMarketer

eMarketer. Facebook Ad Revenues US, 2017-2021. 2019. eMarketer.