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Results after intermediate follow-up (29.8 ± 3 mo) n (%)
| Rate of improvement | ||
| Total rate | 37 (62.7) | |
| Without endoscopic sphincterotomy | 28 (62) | P = 0.88 |
| With endoscopic sphincterotomy | 9 (64.2) | |
| According to initial lengthening of HDTT | ||
| With lengthening | 19 (59.4) | |
| Without lengthening | 18 (66.7) | P = 0.59 |
| According to the Milwaukee group | ||
| Type 1 | 6/11 (54.5) | |
| Type 2 | 23/34 (67.6) | P = 0.75 |
| Type 3 | 8/14 (57.1) |
HDTT: Hile to duodenum transit time.
