Researchers lined the chips with cells derived from COPD patients as well as unaffected people and filled the chambers with cigarette smoke
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You must be 21 years or older with valid ID to enter a dispensary (or 18 years old with a valid Oregon medical registry identification card)
The section on smoking included questions on smoking status (never, current, or ex-smokers), daily number of cigarettes/cigars smoked in different life periods, age at starting, duration of the habit and, for ex-smokers, age at smoking cessation
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The notation was introduced to Western Europe mathematics by Leonhard Euler in 1755, but didnt become accepted practice until the early 19 th C with mathematicians like Fourier (1822 in an 1878 translation), as in Hence, denoting the sum of the preceding series by cos i (x a) (p
