Comparison of Papillary Balloon Dilatation Vs.Sphincterotomy for Lithotripsy in Difficult Sphincterotomy or Distal CBD Tapering
Clinical trial NCT00329888 · UNKNOWN
Trial details
- NCT number
- NCT00329888
- Sponsor
- National Taiwan University Hospital
- Status
- UNKNOWN
- Study type
- OBSERVATIONAL
- Start date
- 2006-03-01
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