Examlex
What can we conclude about the endogeneity of an explanatory variable if the OLS and 2SLS estimates are significantly different? Assume that the instrument used was exogenous.
Free Radicals
Highly reactive molecules with unpaired electrons, capable of causing oxidative damage to cells and DNA.
Absorption
The process by which substances are taken up into or across tissues, such as the absorption of nutrients by the intestines.
Gingivitis
A common and mild form of gum disease (periodontal disease) that causes irritation, redness, and swelling (inflammation) of your gingiva, the part of your gum around the base of your teeth.
Periodontitis
A serious gum infection that damages the soft tissue and destroys the bone supporting teeth, potentially leading to tooth loss.
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