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