Humm ... That's a mistake on my part. But this is because I'd seen another article from 2009 [5] which clearly said it was 6 million. And this article was from

Humm ... That's a mistake on my part. But this is because I'd seen another article from 2009 [5] which clearly said it was 6 million. And this article was from 2014 so I quickly read that as 7.5 million. [5] http://news.health.com/2009/04/08/traveling-treatment/ http://news.health.com/2009/04/08/traveling-treatment/