Source:http://linkedlifedata.com/resource/umls/id/C0021431
MSH: That portion of the electromagnetic spectrum usually sensed as heat. Infrared wavelengths are longer than those of visible light, extending into the microwave frequencies. They are used therapeutically as heat, and also to warm food in restaurants.,CSP: electromagnetic radiation at wavelengths longer than the red end of visible light and shorter than microwaves (roughly between 1 and 100 microns); infrared is usually divided into 3 spectral regions, near, mid and far-infrared.,NCI: Electromagnetic radiation with wavelengths between 750 nanometers and 1 millimeter, between those of visible light and microwaves. This portion of the electromagnetic spectrum can usually be sensed as heat.