[{"arm_notes": "", "treatment_id": null, "treatment_name": "Before and after vaccination against the new coronavirus", "treatment_type": "TODO", "pharmacological_treatment": "TODO"}]

[{"arm_notes": "No information on previous doses", "treatment_id": 1923, "treatment_name": "Inactivated sars-cov-2 vaccine (vero cell)", "treatment_type": "Inactivated virus", "pharmacological_treatment": "Vaccine"}]