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We measured model performance using the concordance correlation coefficient, which is a measure of the agreement between the model predictions and the gold standard, and the root mean squared error, a measure of the magnitude of the deviation between the model predictions and the gold standard, expressed in the same units as the predictions

Animal research suggests that some chemicals in marijuana work against tumor growth, which could explain why lung cancer isn't showing up as often as scientists might expect in people who smoke it

To use activated carbon smoking filters properly, focus on three things: correct placement, smooth airflow, and proper replacement

Removing smoke stains from walls and ceilings may seem daunting, but with the right approach, you can restore your homes appearance and air quality