[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Acteev\u2122 Masks", "treatment_type": "Device", "pharmacological_treatment": "TODO"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Comparison Masks", "treatment_type": "Device", "pharmacological_treatment": "TODO"}]

[{"arm_notes": "", "treatment_id": 1899, "treatment_name": "Acteev masks", "treatment_type": "Protective device", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "", "treatment_id": 500, "treatment_name": "Face mask", "treatment_type": "Protective device", "pharmacological_treatment": "Non pharmacological treatment"}]