The different light sources may allow for differentiation of different tissue types, for example, bone, fat, blood vessels, and nerves, where blue light is preferred for achieving {HEAD ~ good contrast} between {TAIL ~ nerves} and other tissues 
between
The different light sources may allow for differentiation of different tissue types , for example , bone , fat , blood vessels , and nerves , where blue light is preferred for achieving { HEAD ~ good contrast } between { TAIL ~ nerves } and other tissues
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH