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Switzerland
Questionnaires
Smoking Cessation
Postal Service
Attitude to Health
Data Collection
Cross-Sectional Studies
Patient Satisfaction
Risk Factors
Quality of Health Care
Reproducibility of Results
Multivariate Analysis
Quality of Life
Health Status
Health Surveys
Patient Participation
Psychometrics
Hospitalization
Hospitals, University
Physicians
Co-Publications
40
17
15
13
11
9
8
7
6
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