Blank MD, Disharoon S, Eissenberg T Comparison of methods for measurement of smoking behavior: mouthpiece-based computerized devices versus direct observation. Nicotine Tob Res. 2009 Jul;11(7):896-903. doi: 10.1093/ntr/ntp083. Epub 2009 Jun 11.
Clark PI, Gautam SP, Hlaing WM, Gerson LW Response error in self-reported current smoking frequency by black and white established smokers. Ann Epidemiol. 1996 Nov;6(6):483-9.
Connolly GN, Alpert HR Has the tobacco industry evaded the FDA's ban on 'Light' cigarette descriptors? Tob Control. 2014 Mar;23(2):140-5. doi: 10.1136/tobaccocontrol-2012-050746. Epub 2013 Mar 13.
Cubbin C, Soobader MJ, LeClere FB The intersection of gender and race/ethnicity in smoking behaviors among menthol and non-menthol smokers in the United States. Addiction. 2010 Dec;105 Suppl 1:32-8. doi: 10.1111/j.1360-0443.2010.03191.x.
Czoli CD, Hammond D Cigarette packaging: Youth perceptions of "natural" cigarettes, filter references, and contraband tobacco. J Adolesc Health. 2014 Jan;54(1):33-9. doi: 10.1016/j.jadohealth.2013.07.016. Epub 2013 Sep 4.
Djordjevic MV, Stellman SD, Zang E Doses of nicotine and lung carcinogens delivered to cigarette smokers. J Natl Cancer Inst. 2000 Jan 19;92(2):106-11.
Goniewicz ML, Gawron M, Smith DM, Peng M, Jacob P 3rd, Benowitz NL Exposure to Nicotine and Selected Toxicants in Cigarette Smokers Who Switched to Electronic Cigarettes: A Longitudinal Within-Subjects Observational Study. Nicotine Tob Res. 2017 Feb;19(2):160-167. doi: 10.1093/ntr/ntw160. Epub 2016 Aug 17.
Horne DJ, Campo M, Ortiz JR, Oren E, Arentz M, Crothers K, Narita M Association between smoking and latent tuberculosis in the U.S. population: an analysis of the National Health and Nutrition Examination Survey. PLoS One. 2012;7(11):e49050. doi: 10.1371/journal.pone.0049050. Epub 2012 Nov 8.
Jacob P 3rd, Havel C, Lee DH, Yu L, Eisner MD, Benowitz NL Subpicogram per milliliter determination of the tobacco-specific carcinogen metabolite 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol in human urine using liquid chromatography-tandem mass spectrometry. Anal Chem. 2008 Nov 1;80(21):8115-21. doi: 10.1021/ac8009005. Epub 2008 Oct 8.
Jacob P 3rd, Yu L, Duan M, Ramos L, Yturralde O, Benowitz NL Determination of the nicotine metabolites cotinine and trans-3'-hydroxycotinine in biologic fluids of smokers and non-smokers using liquid chromatography-tandem mass spectrometry: biomarkers for tobacco smoke exposure and for phenotyping cytochrome P450 2A6 activity. J Chromatogr B Analyt Technol Biomed Life Sci. 2011 Feb 1;879(3-4):267-76. doi: 10.1016/j.jchromb.2010.12.012. Epub 2010 Dec 21.
Jain RB Levels of selected urinary metabolites of volatile organic compounds among children aged 6-11 years. Environ Res. 2015 Oct;142:461-70. doi: 10.1016/j.envres.2015.07.023. Epub 2015 Aug 7.
Javors MA, Hatch JP, Lamb RJ Cut-off levels for breath carbon monoxide as a marker for cigarette smoking. Addiction. 2005 Feb;100(2):159-67.
Morabia A, Bernstein MS, Curtin F, Berode M Validation of self-reported smoking status by simultaneous measurement of carbon monoxide and salivary thiocyanate. Prev Med. 2001 Jan;32(1):82-8.
Novotny TE, Slaughter E Tobacco Product Waste: An Environmental Approach to Reduce Tobacco Consumption. Curr Environ Health Rep. 2014 May 6;1:208-216. eCollection 2014. Review.
Oren E, Bell ML, Garcia F, Perez-Velez C, Gerald LB Promoting adherence to treatment for latent TB infection through mobile phone text messaging: study protocol for a pilot randomized controlled trial. Pilot Feasibility Stud. 2017 Mar 13;3:15. doi: 10.1186/s40814-017-0128-9. eCollection 2017.
Pulvers K, Hood A, Limas EF, Thomas MD Female smokers show lower pain tolerance in a physical distress task. Addict Behav. 2012 Oct;37(10):1167-70. doi: 10.1016/j.addbeh.2012.05.002. Epub 2012 May 22.
Rahmanian SD, Diaz PT, Wewers ME Tobacco use and cessation among women: research and treatment-related issues. J Womens Health (Larchmt). 2011 Mar;20(3):349-57. doi: 10.1089/jwh.2010.2173. Review.
Tonstad S, Gustavsson G, Kruse E, Walmsley JM, Westin Å Symptoms of nicotine toxicity in subjects achieving high cotinine levels during nicotine replacement therapy. Nicotine Tob Res. 2014 Sep;16(9):1266-71. doi: 10.1093/ntr/ntu076. Epub 2014 May 22.
Weinberger AH, McKee SA Mood and smoking behavior: the role of expectancy accessibility and gender. Addict Behav. 2012 Dec;37(12):1349-52. doi: 10.1016/j.addbeh.2012.07.010. Epub 2012 Jul 28.
Wye P, Gow LB, Constable J, Bowman J, Lawn S, Wiggers J Observation of the extent of smoking in a mental health inpatient facility with a smoke-free policy. BMC Psychiatry. 2014 Mar 29;14:94. doi: 10.1186/1471-244X-14-94.
Zacny JP, Stitzer ML Effects of smoke deprivation interval on puff topography. Clin Pharmacol Ther. 1985 Jul;38(1):109-15.
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.