Table 1.

List of solid phantoms with epidermis thickness and average heme-areas for the four measurements of each phantom. Phantoms with average heme-area $<1.5$ were excluded.

Epidermis		Heme-area (–)
Thickness ($\mu \mathrm{m}$)		Low hemoglobin	High hemoglobin
None	—	3.5	3.8
No coffee	90	3.5	4.0
	155	3.5	4.0
	270	3.5	3.6
Low coffee	75	1.5	2.6
	160	0.7	1.5
	260	0.7	1.2
High coffee	70	1.3	2.3
	160	0.8	1.4
	210	0.7	1.2