title: An ultraviolet laser microbeam for 257 nm.
mesh_terms: D000818:Animals; D001128:Argon; D002466:Cell Nucleolus; D002477:Cells; D002875:Chromosomes; D006224:Cricetinae; D007834:Lasers / Q000295:instrumentation*; D008856:Microscopy, Fluorescence; D008858:Microscopy, Phase-Contrast; D014466:Ultraviolet Rays
chemical_list: D001128:Argon