Question is : legitimate stem cell clinics ?

Good question.

Legal basis of 干细胞治疗 in different countries is different.

The main thing is to use stem cells ethically, so that patient will get positive response, not harm.

Unethical use – fetal stem cells from the fetus.
Ethical and morally – autologous stem cells or cultivated.

In many countries, using of stem cells is prohibited for various reasons.

Basically, due to old views.

Officials do not always understand what this term (“干细胞疗法 ” ) mean.

There are several types of 干细胞疗法 在世界上.
In Canada it is forbidden, in the USA it is forbidden .
There are 2 clinics in Europe which is offer autologous stem cells.

In China, 墨西哥, 印度, 非洲 – a lot of questions regarding quality of so called “干细胞治疗” provided there.
Patient should be able to see license and certification for 干细胞疗法, GMP/GLP certifications of the laboratory etc.