Biomarkers of Potential Harm among Adult Cigarette and Smokeless Tobacco Users in the PATH Study Wave 1 (2013-2014): A Cross-sectional Analysis. - Chang, Joanne T.; Vivar, Juan C.; Tam, Jamie; Hammad, Hoda T.; Christensen, Carol H.; van Bemmel, Dana M.; Das, Babita; Danilenko, Uliana; Chang, Cindy M. (Cancer Epidemiology, Biomarkers & Prevention, 2021)