title: Persistent nasal ulcer.
authors.affiliation: U.S. Air Force School of Aerospace Medicine, Brooks AFB, San Antonio, Texas.
authors.forename: Brian F
authors.initials: BF
authors.lastname: McCrary
mesh_terms: D000328:Adult; D002840:Chromates / Q000506:poisoning*; D019970:Cocaine-Related Disorders / Q000150:complications* / Q000175:diagnosis; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D009668:Nose Diseases / Q000139:chemically induced* / Q000175:diagnosis*; D016273:Occupational Exposure / Q000009:adverse effects*; D009787:Occupational Medicine; D012883:Skin Ulcer / Q000139:chemically induced* / Q000175:diagnosis*; D015813:Substance Abuse Detection
chemical_list: D002840:Chromates; C034944:chromic acid