[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Active HD-tDCS 3mA", "treatment_type": "Other", "pharmacological_treatment": "TODO"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Sham HD-tDCS", "treatment_type": "Other", "pharmacological_treatment": "TODO"}]

[{"arm_notes": "2 mA", "treatment_id": 572, "treatment_name": "High-definition transcranial direct current stimulation (hd-tdcs)", "treatment_type": "Medical device", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "4 mA", "treatment_id": 572, "treatment_name": "High-definition transcranial direct current stimulation (hd-tdcs)", "treatment_type": "Medical device", "pharmacological_treatment": "Non pharmacological treatment"}]

[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "HD-tDCS 2mA", "treatment_type": "Other", "pharmacological_treatment": "TODO"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "HD-tDCS 4mA", "treatment_type": "Other", "pharmacological_treatment": "TODO"}]