title: A comparison of airborne asbestos fibre counting with and without an eyepiece graticule.
mesh_terms: D000393:Air Pollutants / Q000032:analysis; D001194:Asbestos / Q000032:analysis*; D008722:Methods; D008853:Microscopy / Q000295:instrumentation
chemical_list: D000393:Air Pollutants; D001194:Asbestos