Table 1. Quantitative oxygen metrics (mmol/L, mmHg and %) for concentrations within the spheroid array.

SPHEROID ARRAY
	Average O2			Maximum O2			Minimum O2
	mmol/L	mmHg	~%	mmol/L	mmHg	~%	mmol/L	mmHg	~%
Regular	0.036	28	3.68	0.098	75.49	9.91	1.37×10−4	0.11	0.014
Random	0.041	31.94	4.19	0.118	91.27	12	1.29×10−4	0.10	0.013
Random with size variance	0.043	33.03	4.34	0.107	82.76	10.9	1.53×10−7	1.18×10−4	1.6×10−5