Table 2.

Schedule of study activities

	Study period
	Recruitment/Screening	Allocation	Postallocation
TImepoint (Day)	−28	−14	0 (Operation)	1	3	5	7	At discharge
Agreement	X
Patient background	X
Performance status	X
Blood test	X		X	X	X	X	X	X
Vital sign	X		X	X	X	X	X	X
Allocation		X
Intervention			X
Assessments
Success of leak test			X
Adverse effects			X	X	X	X	X	X
Bile leak			X	X	X	X	X	X
Other complications			X	X	X	X	X	X