<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">epifluorescence microscopy</topic></authority><related type="broader"><topic>fluorescence microscopy</topic></related><variant type="other"><topic>microscopy, epifluorescence</topic></variant> <note xml:lang="en"><![CDATA[ Refers to the most commonly used flourescence microscopy technique. Exciting radiation is mounted above ('epi') the specimen and is reflected downwards, passing through the microscope objective lens on its way toward the specimen. ]]></note></mads>