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Advances in steam power and water travel revolutionized southern farmers and planters ability to deseed and bundle their products and move them to ports popping up along the Atlantic seaboard

It is also used in the tanning industries

Children with asthma and those living in multi-housing units have higher rates of secondhand smoke exposure than non-asthmatics and children living in single-home dwellings

The value of obtaining a thorough history, including dietary intake, exposure to drugs, use of tobacco, and social and occupational background, cannot be overemphasized, and the history must be obtained in an appropriate manner

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