title: FDA begins to act against black box excimer lasers.
authors.forename: M
authors.initials: M
authors.lastname: Kohl
mesh_terms: D018795:Device Approval / Q000331:legislation & jurisprudence*; D006801:Humans; D054018:Lasers, Excimer; D018903:Photorefractive Keratectomy / Q000592:standards; D054140:Refractive Surgical Procedures; D014481:United States; D014486:United States Food and Drug Administration / Q000331:legislation & jurisprudence*