(cond
      ;; Branche 1
      (= age-range "inf_15")
      (do (println "Branch 1: less than 15 years")
          orientation_moins_de_15_ans)
      ;; Branche 2
      (>= major-severity-factors 1)
      (do (println "Branch 2: at least one major gravity factor")
          orientation_SAMU)
      ;; Branche 3
      (and fever cough)
      (do (println "Branch 3: fever and cough")
          (cond (= pronostic-factors 0)
                orientation_consultation_surveillance_3
                (>= pronostic-fa