[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Medical Mask", "treatment_type": "Device", "pharmacological_treatment": "TODO"}, {"arm_notes": "nan", "treatment_id": 848, "treatment_name": "N95 respirator", "treatment_type": "Protective device", "pharmacological_treatment": "Non pharmacological treatment"}]

[{"arm_notes": "", "treatment_id": 848, "treatment_name": "N95 respirator", "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"}]