What's the difference between a phototherapist who uses the peninsula to remove the white elves and a phototherapist in a hospital?

There is no difference. Peninsula itself is a big brand of medical equipment, and many phototherapy instruments in top three hospitals belong to his family. The white elf was invented to solve the disadvantages of phototherapy in hospitals. Baidu understands that it has various patents and authoritative certifications, which are not only pure in light source, but also highly targeted, and is very friendly to patients who are difficult to insist on going to the hospital or can't afford high phototherapy fees.