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Brief Title: Clearance of NNAL and Cotinine From Second-hand Smoke in Hair and Urine
Official Title: Elimination of NNAL and Cotinine From Hair and Urine
Study ID: NCT00863824
Brief Summary: This study will investigate how long it takes for NNAL and cotinine, markers of second hand smoke, to clear the human body.
Detailed Description: The purpose of the study is to investigate how long it takes for NNAL and cotinine, both specific markers of second hand tobacco smoke exposure to clear the human body.
Minimum Age: 19 Years
Eligible Ages: ADULT, OLDER_ADULT
Sex: ALL
Healthy Volunteers: Yes
Name: Chandran Achuatn, PhD
Affiliation: University of Nebraska
Role: PRINCIPAL_INVESTIGATOR