[{"arm_notes": "", "treatment_id": null, "treatment_name": "Experimental group:Convalescent plasma therapy + routine treatment;Control group:routine treatment;", "treatment_type": "TODO", "pharmacological_treatment": "TODO"}, {"arm_notes": "", "treatment_id": null, "treatment_name": "Experimental group:Convalescent plasma therapy + routine treatment", "treatment_type": "TODO", "pharmacological_treatment": "TODO"}, {"arm_notes": "", "treatment_id": null, "treatment_name": "Control group:routine treatment;", "treatment_type": "TODO", "pharmacological_treatment": "TODO"}]

[{"arm_notes": "", "treatment_id": 322, "treatment_name": "Convalescent plasma", "treatment_type": "Convalescent plasma", "pharmacological_treatment": "Biological treatment"}, {"arm_notes": "", "treatment_id": 2188, "treatment_name": "Standard of care", "treatment_type": "Standard of care", "pharmacological_treatment": "Standard of care"}]