title: Relative errors associated with two methods for measuring gingival cervicular fluid.
mesh_terms: D005883:Gingival Crevicular Fluid; D005891:Gingivitis / Q000175:diagnosis*; D006801:Humans; D007202:Indicators and Reagents; D009555:Ninhydrin; D010517:Periodontics / Q000295:instrumentation
chemical_list: D007202:Indicators and Reagents; D009555:Ninhydrin