Table 2. P value for the comparison between the different tissues.

P value	Ureter vs. esophagus	Ureter vs. skin	Esophagus vs. skin
Elastic modulus
native	0.008	1	0.02
acellular	1	<0.001	0.002
Maximum strain
native	<0.001	0.022	0.157
acellular	<0.001	0.007	0.042
Ultimate tensile stress
native	0.960	0.011	<0.001
acellular	0.316	<0.001	<0.001