Biochemical verification of tobacco use and cessation

Measuring degree of physical dependence to tobacco smoking with reference to individualization of treatment

1978 • 2,231 citations

The validity of self-reported smoking: a review and meta-analysis.

1994 • 1,718 citations

Measuring nicotine dependence: A review of the Fagerstrom Tolerance Questionnaire

1989 • 1,569 citations

Comparison of tests used to distinguish smokers from nonsmokers.

1987 • 1,005 citations

Assessing outcome in smoking cessation studies.

1992 • 820 citations

Daily intake of nicotine during cigarette smoking

1984 • 504 citations

Cotinine disposition and effects

1983 • 483 citations

Metabolism of nicotine to cotinine studied by a dual stable isotope method

1994 • 481 citations

Accelerated Metabolism of Nicotine and Cotinine in Pregnant Smokers

2002 • 434 citations

Considerations of the physiological variables that determine the blood carboxyhemoglobin concentration in man.

1965 • 427 citations

Nortriptyline and Cognitive-Behavioral Therapy in the Treatment of Cigarette Smoking

1998 • 400 citations

Serum Cotinine Concentration and Self-reported Smoking during Pregnancy

1998 • 271 citations

Cognitive-behavioral intervention increases abstinence rates for depressive-history smokers.

1994 • 257 citations

Quantitation of urinary metabolites of a tobacco-specific lung carcinogen after smoking cessation.

1999 • 243 citations

Nicotine Replacement : A Critical Evaluation

1991 • 181 citations

Criteria for the Diagnosis of Alcoholism

1977 • 178 citations

A high-performance liquid-chromatographic method for routine simultaneous determination of nicotine and cotinine in plasma.

1988 • 178 citations

Mood management and nicotine gum in smoking treatment: A therapeutic contact and placebo-controlled study.

1996 • 167 citations

Dietary nicotine: A source of urinary cotinine

1991 • 152 citations

Optimum cutoff points for biochemical validation of smoking status.

1988 • 151 citations

Stable isotope studies of nicotine kinetics and bioavailability

1991 • 135 citations

Relationship between nicotine tolerance questionnaire scores and plasma cotinine

1990 • 110 citations

Saliva cotinine as a measure of smoking status in field settings.

1987 • 100 citations

Application of Serum Nicotine and Plasma Cotinine Concentrations to Assessment of Nicotine Replacement in Light, Moderate, and Heavy Smokers Undergoing Transdermal Therapy

1998 • 100 citations

Analytical Determination of Nicotine and Related Compounds and their Metabolites,

2001 • 99 citations

Saliva Cotinine as an Indicator of Cigarette Smoking in Adolescents

1987 • 92 citations

A simple, inexpensive urine test of smoking.

1985 • 91 citations

Comparison of biochemical and questionnaire estimates of tobacco exposure

1979 • 70 citations

Kinetics of elimination of thiocyanate in 7 healthy subjects and in 8 subjects with renal failure

1979 • 54 citations

Blood cotinine levels as indicators of smoking treatment outcome

1984 • 53 citations

Impact of Smoking Cessation on Salivary Function in Healthy Volunteers

1998 • 49 citations

Evaluation of two biological markers of tobacco exposure

1991 • 41 citations

Saliva cotinine levels as a function of collection method

1997 • 40 citations

Cotinine determination by immunoassays may be influenced by other nicotine metabolites

1988 • 39 citations

Toxicity of nicotine: implications with regard to nicotine replacement therapy.

1988 • 37 citations

An automated colorimetric assay for urine nicotine metabolites: a suitable alternative to cotinine assays for the assessment of smoking status

1987 • 37 citations

Carbon monoxide and thiocyanate levels in low tar/nicotine smokers

1981 • 34 citations

Specificity of Salivary Thiocyanate as Marker of Cigarette Smoking Is Not Affected by Alimentary Sources

1997 • 34 citations

Determination of nicotine and its metabolites in biological fluids: in vivo studies

1999 • 29 citations

Properties of saliva cotinine in young adult light smokers.

1988 • 27 citations

Interference of Nicotine Metabolites in Cotinine Determination by RIA

1997 • 27 citations

Use of gas chromatographic and mass spectrometric techniques for the determination of nicotine and its metabolites

1999 • 20 citations

Simple high-performance liquid chromatographic method to verify the direct barbituric acid assay for urinary cotinine

1993 • 20 citations

Cotinine levels in Southeast Asian smokers

2000 • 17 citations

Comparison of the measurement of serum cotinine levels by gas chromatography and radioimmunoassay

1991 • 15 citations

Use of high-performance liquid chromatographic–mass spectrometric (LC–MS) techniques for the determination of nicotine and its metabolites

1999 • 9 citations

Use of immunoassay techniques for the determination of nicotine and its metabolites

1999 • 9 citations

Reducing the confounding effects of environment and diet on saliva thiocyanate values in ex-smokers

1985 • 8 citations