[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Double-Trunk Mask", "treatment_type": "Other", "pharmacological_treatment": "TODO"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Standard Oxygen Delivery System", "treatment_type": "Other", "pharmacological_treatment": "TODO"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Surgical Mask", "treatment_type": "Other", "pharmacological_treatment": "TODO"}]

[{"arm_notes": "", "treatment_id": 417, "treatment_name": "Double-trunk mask", "treatment_type": "Protective device", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "", "treatment_id": 777, "treatment_name": "Medical mask", "treatment_type": "Protective device", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "", "treatment_id": 2188, "treatment_name": "Standard of care", "treatment_type": "Standard of care", "pharmacological_treatment": "Standard of care"}]