title: Toward quantitation of excitation.
mesh_terms: D005374:Filtration / Q000295:instrumentation / Q000592:standards; D005455:Fluorescent Antibody Technique / Q000295:instrumentation* / Q000592:standards; D008027:Light; D008433:Mathematics; D008856:Microscopy, Fluorescence / Q000295:instrumentation* / Q000592:standards