Patients (2) Manufacturers' agents (2) Commission merchants (2) Patients (2) poids (1) test (1) enquête (1) comportement (1) mise sous écran protecteur (1) qualité de vie (1) plomb (1) inventaire (environnement) (1) santé (1) âge (1) méthode (1) Reliability (1) Vitality (1) Vitality (1) Table (1) Strategy (1) Self-perception (1) Reliability (1) Quality of life (1) Persons (1) Perception (1) Obesity--Surgery (1) Mental health (1) Human beings (1) Maintenance (1) Liver (1)