title: Using urea as an endogenous marker of bronchoalveolar lavage dilution.
authors.forename: Eric
authors.initials: E
authors.lastname: Kipnis
mesh_terms: D001992:Bronchoalveolar Lavage Fluid / Q000737:chemistry*; D004848:Epithelium / Q000737:chemistry; D006801:Humans; D014508:Urea / Q000032:analysis*
chemical_list: D014508:Urea