slaves on tobacco plantations harvesting and drying leaves a plantation in Virginia, 18th century. Handcoloured copperplate engraving by Sasso from Giulio Ferrario's Ancient and Modern Costumes of all the Peoples of the World Slave life on Southern plantations

Easton, John (March 28, 2002)

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In order to translate observed breathing patterns and smoking behavior into biological effects, we combined the small airway-on-a-chip with a smoking machine that burns cigarettes and a microrespirator that inhales and exhales small volumes of cigarette smoke and fresh air in and out of the epithelium-lined channel in programmable intervals mimicking true smoking behavior, said Richard Novak, a co-author of the study and a senior staff engineer at the Wyss Institute, who helped design the smoking instrument

Having a family history of mental illness increases this risk

Screening is not meant to punish people for cannabis use

J Pub Health Policy 16:433439 Brunnemann KD, Hoffmann D, Gairola CG, Lee BC (1994) Low ignition propensity cigarettes: smoke analysis for carcinogens and testing for mutagenic activity of the smoke particulate matter