And I think in many ways it's a testament to the hard work of a lot of people in the administration in bringing a very disparate group of stakeholders together for the very first time to agree on one standard for emissions and for fuel economy, something that hasn't been done before.

WHITEHOUSE: Press Briefing

These are the gold standard randomized control trials or intervention studies, in which a control group consuming soda is monitored for weight gain over time against a group which stops drinking soda (and all other dietary and lifestyle factors are controlled for).

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