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In the 1980s PM routinely performed chemical analysis of smoke [36],[37], cytotoxicity testing (Ames and neutral red uptake tests) for mutagenicity [38],[39], and in vivo rodent toxicology studies [40][42], honing the techniques for performing these assays at their Institut fr Biologische Forschung (INBIFO) in Germany and Contract Research Center (CRC) in Belgium [13]

According to a previous investigation, sun-cured tobacco and cigarettes were popular among COPD patients in Sichuan Province

If I have instincts I feel are right, I dont want anyone to tamper with them, he told After Dark magazine in 1973

Its unlike anything else

Kadonaga et al., 1987) and plays a key role in early development