Black hairy tongue (BHT) is a benign disorder characterized by hypertrophy and discoloration of the filiform papillae of the tongue[3]
Magnetic resonance imaging of perfusion using spin inversion of arterial water
When symptoms do occur, they may include persistent fatigue, discomfort in the upper right abdomen, or unexplained weight loss
From the law itself: Beginning 3 months after the date of enactment of the Family Smoking Prevention and Tobacco Control Act, a cigarette or any of its component parts (including the tobacco, filter, or paper) shall not contain, as a constituent (including a smoke constituent) or additive, an artificial or natural flavor (other than tobacco or menthol) or an herb or spice, including strawberry, grape, orange, clove, cinnamon, pineapple, vanilla, coconut, licorice, cocoa, chocolate, cherry, or coffee, that is a characterizing flavor of the tobacco product or tobacco smoke
Using this formula, an approximate sample size of 30 was calculated
& Lin, C