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Christensen, Carol H., Brian Rostron, Candace Cosgrove, Sean F. Altekruse, Anne M. Hartman, James T. Gibson, Benjamin Apelberg, Maki Inoue-Choi, und Neal D. Freedman. "Association of Cigarette, Cigar, and Pipe Use With Mortality Risk in the US Population." JAMA Intern Med 2018.

Christensen, Carol H., et al. "Association of Cigarette, Cigar, and Pipe Use With Mortality Risk in the US Population." JAMA Intern Med 2018.