[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "COVID-19 vaccine (Vero cells);Recombinant COVID-19 Vaccine (CHO cell)", "treatment_type": "Biological;Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "COVID-19 vaccine (Vero cells);Recombinant COVID-19 Vaccine (CHO cell)", "treatment_type": "Biological;Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "COVID-19 vaccine (Vero cells);Recombinant COVID-19 Vaccine (CHO cell)", "treatment_type": "Biological;Biological", "pharmacological_treatment": "Non pharmacological treatment"}]

[{"arm_notes": "last vaccination time is within 30-90 days", "treatment_id": 1923, "treatment_name": "Inactivated sars-cov-2 vaccine (vero cell)", "treatment_type": "Inactivated virus", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "last vaccination time is within 91-180 days", "treatment_id": 1923, "treatment_name": "Inactivated sars-cov-2 vaccine (vero cell)", "treatment_type": "Inactivated virus", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "last vaccination time more than 181 days", "treatment_id": 1923, "treatment_name": "Inactivated sars-cov-2 vaccine (vero cell)", "treatment_type": "Inactivated virus", "pharmacological_treatment": "Vaccine"}]