20
Participants
Start Date
September 1, 2025
Primary Completion Date
March 31, 2026
Study Completion Date
March 31, 2026
Expired carbon monoxide (CO)
Expired CO will be measured using a non-investigational device
Interviews
Participants will be interviewed via video conference or in person
Questionnaires
Participants will receive questionnaires to complete through the course of the study
Zuckerberg San Francisco General Hospital, San Francisco
Tobacco Related Disease Research Program
OTHER
University of California, San Francisco
OTHER