Interviews with professionals:
Engineer at Ball Aerospace: Tony Dreher
http://www.kittycatcrew.com/index.php/2018/12/01/interview-with-tony-dreher-retired-aerospace-principal-structural-engineer-sunstrand-corporation-and-ball-aerospace/
The Café Meow Owner: Jessica Burge
http://www.kittycatcrew.com/index.php/2018/11/15/cat-cafe-owner-interveiw/
The Café Meow Owner: Danielle Rasmussen
http://www.kittycatcrew.com/index.php/2018/11/15/cat-cafe-owner-interveiw/
Engineer at Ball Aerospace: Linda Krauze
http://www.kittycatcrew.com/index.php/2018/11/02/interview-with-an-engineer-at-ball-aerospace/
Reach-in website device automation: Scott Harris
https://www.reach-in.com/ipetcompanion
Websites and published information:
https://www.care2.com/greenliving/5-reasons-cats-make-you-feel-better.html
https://www.webmd.com/hypertension-high-blood-pressure/features/6-ways-pets-improve-your-health#1
https://www.somepets.com/15-pictures-that-will-make-you-feel-better/
https://www.thesprucepets.com/why-cats-are-better-than-dogs-554880
https://www.youtube.com/watch?v=O9XtK6R1QAk
Survey results:
http://www.kittycatcrew.com/index.php/2018/11/23/survey-results/