Definitions are found on the "maps," "country profile," and "rank by variable" tabs by clicking on a variable name. using one of these tabs, drill into "barriers to trade" and click on "prevalence of non-tariff barriers" (here's the path: economics/market access/trade profile/barriers to trade/prevalence of trade barriers). within the definition, what are listed as non-tariff barriers (ntbs)

states grant a variety of local governments power to meet residents’ needs (source: apex learning). hope this !

it might look like that the ideal way to research the health effects of trans fats is through a controlled experimental feeding trial. but these kinds of trial have several important limitations that the researcher must look into:

short in duration (this factor usually checks up on the intermediary risk factors rather than the actual outcomes of the disease)

limited dietary changes

only makes use of healthy participants