[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Recombinant new coronavirus vaccine (CHO cell) group", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Recombinant new coronavirus vaccine (CHO cell) group", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Recombinant new coronavirus vaccine (CHO cell) group", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Recombinant new coronavirus vaccine (CHO cells) placebo group", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Recombinant new coronavirus vaccine (CHO cells) placebo group", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Recombinant new coronavirus vaccine (CHO cells) placebo group", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}]

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