China.
I'vr been to mainland China three times in the last five years for my job. It is waht I call a "30 foot" country. Thingls look pretty impressive, until you get to within 30 feet of them. Then you can see the poor craftsmanship, and lack of quality, as though it just wasn't put together quite right.
Doesn't surprise me that breaking people's femurs, and inserting screws to make them taller is being passed around that country as a safe and legitimate medical solution.
Zig