Table 1. Schedule of laughter therapy and assessments.

	Study week
	-6 to -2	0	1	3	5	7	9	11	13	15
	Enrollment	Baseline	Initial phase				Cross-over phase
Laughter therapy
Group A			x	x	x	x
Group B							x	x	x	x
Assessmentsa
Quality of life		x		x		x		x		x
ECOG PS		x
Ongoing cancer treatment	x

Abbreviations: ECOG, Eastern Cooperative Oncology Group; PS, performance status.

^aAssessments were performed for both groups according to the same schedule.