<?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">optical microscopy</topic></authority><related type="narrower"><topic>Raman microscopy</topic></related><related type="narrower"><topic>stereomicroscopy</topic></related><related type="broader"><topic>microscopy</topic></related><variant type="other"><topic>light microscopy</topic></variant><variant type="other"><topic>microscopy, optical</topic></variant> <note xml:lang="en"><![CDATA[ Refers to the oldest form of microscopy, which employs visible light to view objects that are too small to be seen with the naked, unaided eye.  ]]></note></mads>