Table 2. Experimental setup of total variation experiment: The samples on one gel are matched according to age and gender.

	Cy3	Cy5	Cy2		Cy3	Cy5	Cy2
Gel 1	HV 1	HV 21	pool	Gel 7	HV 22	HV 20	pool
Gel 2	HV 2	HV 15	pool	Gel 8	HV 10	HV 18	pool
Gel 3	HV 3	HV 13	pool	Gel 9	HV 6	HV 24	pool
Gel 4	HV 12	HV 5	pool	Gel 10	HV 14	HV 23	pool
Gel 5	HV 7	HV 11	pool	Gel 11	HV 19	HV 8	pool
Gel 6	HV 16	HV 4	pool	Gel 12	HV 9	HV 17	pool

HV = healthy volunteer.