Reparative mucosal hyperplasia was present in tracheas of rats exposed to higher concentrations of smoke, indicating that initial loss of epithelium occurred earlier at the higher, presumably more toxic, exposure levels allowing sufficient time to begin replacement of lost mucosal epithelium prior to study termination
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The public health effects of tobacco use extend far beyond those who use it themselves
A person shall be deemed to be in compliance with the provisions of subsection 1 if, before the person sells, distributes or offers to sell to another any item described in subsection 1, the person: (a) Demands that the other person present a valid drivers license, permanent resident card, tribal identification card or other written or documentary evidence which shows that the other person is 21 years of age or older
Hst, U., Kelbaek, H., Rasmusen, H., Court-Payen, M., Christensen, N