[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Surgical Mask", "treatment_type": "Behavioral", "pharmacological_treatment": "TODO"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Surgical Mask", "treatment_type": "Behavioral", "pharmacological_treatment": "TODO"}]

[{"arm_notes": " ", "treatment_id": 509, "treatment_name": "Ffp2 mask", "treatment_type": "Protective device", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": " ", "treatment_id": 1250, "treatment_name": "Surgical facial mask", "treatment_type": "Protective device", "pharmacological_treatment": "Non pharmacological treatment"}]