Abbreviations
continuous abstinence rateConsolidated Standards of Reporting Trialschronic obstructive pulmonary diseasecontinuous reduction rateelectronic cigaretteexhaled carbon monoxideheated tobacco productmodified Cigarette Evaluation Questionnairemodified Smoking Cue Appeal Surveynicotine delivery alternativeodds ratioPerceived Risk Instrument for conventional cigarettesPerceived Risk Instrument for reduced risk products