Methods The cecocolon and ascending colon of two free teniae coli were excised to make a urine-storage reservoir.The original appendix was used to form output duct through navel.

方法全组选用间断切断两条游离结肠带的盲、结肠做储尿囊,根部不做任何处理的尾经脐孔引出做输出道。