Table 2. Animal size and age in previous pig-to-primate renal transplants.

Donor	Recipient	Reference
18 to 40 kg (2 to 4 months)	Baboon 10 to 17 kg	Bühler et al. 5
18 to 40 kg (2 to 4 months)	Baboon 10 to 17 kg	Gollackner et al.6
16 to 18 kg (2 to 3 months)	Baboon 7 to 9 kg	Iwase et al.7
3.5 to 4.5 kg (3 to 4 weeks)	Monkey 3 to 5 kg (3 to 5 years)	Wang et al.4
6 to 14 kg (3 to 7 weeks)	Monkey 3 to 6 kg (3 to 4 years)	Spiezia et al.14