Table 1. Characteristics of ASC analyzed at different culture passages.

	Passages [days of culture]
Samples	0	1	2	3	4	5	6	7	9	14
A	7.9 [8]	12.8 [14]	17.2 [21]	21.2 [28]	26.0 [35]	30.2 [42]	34.9 [49]	n.d.	45.7 [70]	60.1 [120]
B	n.d.	11.2 [14]	14.8 [21]	19.2 [28]	23.5 [35]	27.3 [42]	31.0 [49]	n.d.	n.d.	n.d.
C	7.8 [8]	13.0 [15]	17.7 [23]	n.d.	25.4 [36]	29.8 [43]	33.3 [50]	n.d.	n.d.	n.d.
D	n.d.	10.6 [14]	n.d.	16.2 [28]	n.d.	n.d.	22.2 [62]	24.8 [96]	n.d.	n.d.
E	8.1 [8]	12.9 [14]	n.d.	21.1 [28]	24.8 [35]	28.6 [42]	31.9 [49]	n.d.	n.d.	n.d.
F	6.4 [8]	10.7 [14]	15.3 [20]	n.d.	n.d.	28.7 [40]	32.7 [47]	n.d.	n.d.	n.d.
Mean±SD	7.6±0.8	11.9±1.1	16.2±1.4	19.4±2.3	24.9±1.1	28.9±1.2	31.0±4.5

Cumulative Population Doublings and [days of culture] of all the samples at the different culture passages analyzed are reported.