Records show some Pennsylvania doctors approve tens of thousands of medical marijuana cards every year.
Subscribe to WTAE on YouTube now for more: http://bit.ly/1emyOjP
Get more Pittsburgh news: http://www.wtae.com
Like us: http://www.facebook.com/wtae4
Follow us: http://twitter.com/WTAE
Instagram: https://www.instagram.com/wtaetv/
source