title: A micromethod for free erythrocyte porphyrins: the FEP test.
mesh_terms: D004912:Erythrocytes / Q000032:analysis*; D005069:Evaluation Studies as Topic; D005470:Fluorometry / Q000295:instrumentation; D006400:Hematocrit; D006801:Humans; D007854:Lead / Q000097:blood; D007855:Lead Poisoning / Q000175:diagnosis; D008403:Mass Screening; D008722:Methods; D008832:Microchemistry; D011166:Porphyrins / Q000097:blood*; D012044:Regression Analysis
chemical_list: D011166:Porphyrins; D007854:Lead