title: [Propensity score is a useful tool for non randomized studies].
authors.forename: Chadli
authors.initials: C
authors.lastname: Dziri
mesh_terms: D000768:Anesthesia, General; D000775:Anesthesia, Spinal; D006552:Hernia, Inguinal / Q000601:surgery; D006801:Humans; D057216:Propensity Score; D012107:Research Design