Effect of Butorphanol on Colonoscopy for Patients With Postoperative Visceral Pain
Clinical trial NCT04477733 · COMPLETED
Trial details
- NCT number
- NCT04477733
- Sponsor
- Beijing Tiantan Hospital
- Status
- COMPLETED
- Phase
- Phase 4
- Study type
- INTERVENTIONAL
- Start date
- 2020-08-14
- Primary completion
- 2021-09-30
- Enrollment
- 203
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