hôpital (4) Research (4) recherche (3) Methods (3) Interviews (3) Research (3) Questionnaires (3) Population (3) Physicians (3) Patients (3) Manufacturers' agents (3) Interviews (3) Commission merchants (3) Interviews (3) Methods (3) Utilization (3) Design (3) Population (3) Patients (3) temps (durée) (2) secteur des services (2) information (2) éducation (2) adulte (2) Lausanne (2) Education (2) Nurses (2) Treatment (2) Control (2) Care (2)