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We evaluated the model accuracy by computing confidence limits on the area under the receiver-operator curve (area-under-curve or AUC), a threshold-independent metric of binary classifier accuracy that adopts a value of 0.5 for null models and 1.0 for perfect discrimination
Smokeless Tobacco: Not a Safer Option Some people switch to chewing tobacco or snuff thinking its less harmful than smoking
Coughing After Quitting Smoking Although quitting smoking will improve your breathing, you may cough after you stop
These abnormal signs can be caused by a number of toxins, including caffeine, human medications, moldy food, and algae
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