Validity of Expired Carbon Monoxide and Urine Cotinine Using Dipstick Method to Assess Smoking Status
Journal of Preventive Medicine and Public Health. 2007;40(4):297 
Sequential combination of self-report, breath carbon monoxide, and saliva cotinine to assess smoking status
Drug and Alcohol Dependence. 2011;113(2-3):242-244
Using expired air carbon monoxide to determine smoking status during pregnancy: Preliminary identification of an appropriately sensitive and specific cut-point
Addictive Behaviors. 2013;38(10):2547-2550
Validity assessment of self-reported smoking status in firefighters using the urine cotinine test
Annals of Occupational and Environmental Medicine. 2020;32(1):
Measurement of expired carbon monoxide among medical students to assess smoking behaviour
Sozial- und Pr�ventivmedizin SPM. 1998;43(6):322-324
Factors to consider when using expired air carbon monoxide in smoking assessment
Addictive Behaviors. 1978;3(1):25-28
Validity assessment of self-reported smoking status to detection of urine cotinine levels among patients with tuberculosis undergoing tobacco cessation treatment
Biomedicine. 2022;42(2):371-376
Expired Carbon Monoxide Validation of Self-reported Smoking among Emergency Department Patients
Academic Emergency Medicine. 2005;12(Supplement 1):45-45
Comparable Sensitivities of Urine Cotinine and Breath Carbon Monoxide at Follow-Up Time Points of Three Months or More in a Smoking Cessation Trial
Pharmacology. 2010;85(4):234-240
Relation of expired carbon monoxide to smoking history, lapsed time, TLCO measurement and passive smoking
Respiratory Medicine. 2005;99(1):32-38