[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Group 1: Rivaroxaban 20mg/d followed by enoxaparin/unfractionated heparin when needed", "treatment_type": "Drug", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Group 2: control group with enoxaparin 40mg/d", "treatment_type": "Drug", "pharmacological_treatment": "Pharmacological treatment"}]

[{"arm_notes": "", "treatment_id": 1697, "treatment_name": "Enoxaparin+rivaroxaban", "treatment_type": "Coagulation modifiers", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "", "treatment_id": 463, "treatment_name": "Enoxaparin", "treatment_type": "Coagulation modifiers", "pharmacological_treatment": "Pharmacological treatment"}]