Snuff Use, Smoking, Periodontal Health and Premature Death: 30-year Study
NCT03614871
·
clinicaltrials.gov ↗
COMPLETED
Status
1676
Enrollment
OTHER
Sponsor class
Conditions
Tobacco Use
Periodontitis
Interventions
OTHER:
Epidemiological study
Sponsor
University of Helsinki
Collaborators
[object Object]