CNN CNN Newsroom February 5, 2014 18:10:00
California, thank you. and as you noted, a big question now as to whether other retail chains will follow suit. walgreens saying it's been evaluating tobacco products in its stores for a while. let's bring in our chief medical correspondent, dr. sanjay gupta. sanjay, will the cvs decision have a measurable impact? >> it's tough to say overall. i think in terms of the message and the lack of advertising when you walk into a pharmacy, and reminding people that you come to a pharmacy to be healthy and shouldn't buy unhealthy products. i think that's a significant impact. but overall cigarette sal...