Johnson, H. M., Piper, M. E., Baker, T. B., Fiore, M. C., & Stein, J. H. (2012). Effects of Smoking and Cessation on Subclinical Arterial Disease: A Substudy of a Randomized Controlled Trial. Public Library of Science.

Johnson, Heather M., Megan E. Piper, Timothy B. Baker, Michael C. Fiore, και James H. Stein. Effects of Smoking and Cessation On Subclinical Arterial Disease: A Substudy of a Randomized Controlled Trial. Public Library of Science, 2012.

Johnson, Heather M., et al. Effects of Smoking and Cessation On Subclinical Arterial Disease: A Substudy of a Randomized Controlled Trial. Public Library of Science, 2012.