Ultrasound is an advanced medical technology, which has been a commonly used diagnostic method by doctors with good directionality. Ultrasound is divided into A type (oscilloscopic) method, B type ...
UV phototherapy is 311 ~ 313nm ultraviolet light treatment.Also known as narrow spectrum ultraviolet radiation therapy ( NB UVB therapy ).The narrow segment of UVB: the wavelength of 311 ~ 313nm ca...
