The term aliphatic polyester refers to polymers having the structure [C(O)RO] n , wherein n is an integer representing the number of monomer units in the polymer chain and R is an aliphatic hydrocarbon, preferably a C1-C10 alkylene, more preferably a C1-C6 alkylene (e.g., methylene, ethylene, propylene, isopropylene, butylene, isobutylene, and the like), wherein the alkylene group can be a straight chain or branched
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Preventive Services Task Force currently considers the evidence insufficient to make a formal recommendation for e-cigarettes as a cessation tool
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In excess of 2.4 trillion cigarettes are sold there each year, about 46% of the global total, and more than the next 67 countries combined
