| Short protocol | Long protocol |
| t0 – baseline (before intracolonic administration) | t0 – baseline (before intracolonic administration) |
| t1 – 5 min after intracolonic administration | t1 – 30 min after intracolonic administration |
| t2 – 30 min after intracolonic administration | t2 – 60 min after intracolonic administration |
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