[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "ECMO Implantation", "treatment_type": "Procedure", "pharmacological_treatment": "TODO"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "ECMO Implantation", "treatment_type": "Procedure", "pharmacological_treatment": "TODO"}]

[{"arm_notes": "Early implantation", "treatment_id": 440, "treatment_name": "Ecmo", "treatment_type": "Life support", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "Late implantation", "treatment_id": 440, "treatment_name": "Ecmo", "treatment_type": "Life support", "pharmacological_treatment": "Non pharmacological treatment"}]