Related by context. Frequent words. (Click for all words.) 56 lumens 53 lumen output 51 endothelial cell 50 fluorescence 50 luminance 50 membrane 49 LED illumination 48 absorbance 48 epithelial cell 48 anastomosis 48 watt 47 vertebral body 47 dilatation 47 vivo 47 mitral 47 luminaire 47 intra abdominal 46 fluorescent fixtures 46 mm2 46 LED lamp 46 transduction 46 μm 46 transmittance 46 apical 45 lm W 45 intravascular 45 fluorescence imaging 45 photodetector 45 aortic arch 45 mucosa 45 brightness 45 illumination 45 diode 45 capillaries 45 cannula 44 dermis 44 cavity 44 luminaires 44 tracheal 44 bronchi 44 transmissive 44 aperture 44 femtosecond laser 44 laminar 44 dimmable 44 confocal 44 anterior chamber 44 thin walled 44 power dissipation 44 ANSI lumens 44 pulse generator 44 photonic crystal 44 analyte 43 stent placement 43 microbubbles 43 mW 43 intra operative 43 photodiode 43 chroma 43 waveguide 43 uncooled 43 FRET 43 liposome 43 duodenum 43 photon 43 transducer 43 mRNA expression 42 cold cathode fluorescent 42 confocal microscopy 42 #mA [001] 42 halogen 42 #V AC [002] 42 backlight 42 resorption 42 photodiodes 42 SXGA 42 laminar flow 42 wavefront 42 LEDs 42 luminosity 42 reflectance 42 laser ablation 42 mA 42 LED lamps 42 annular 42 irradiance 42 amplitudes 42 tubules 42 quantitation 42 isotropic 42 downlights 42 backlit LCD 42 LED 42 voxel 41 collagen fibers 41 photometric 41 handpiece 41 airflow 41 conductance 41 conduction 41 cytotoxicity