organs

Also, since the foetuses were attached to organs like the liver, kidneys and the intestines, they had to be extracted with great care so that no organs or blood vessels were damaged.

And continued advancements in medicine and technology mean transplanted organs are lasting far longer once in people.

"His stomach was squashed. All of his organs were being pushed out of the way," Elissa said.

His Mandarin translator then added: "With the development of biotechnology, human organs can be continuously transplanted, and people can live younger and younger, and even achieve immortality."

She suggests the US could emulate its own policy on organ donation - which is governed by the Uniform Anatomical Gift Act, and prohibits the sale of organs.