title: Images in clinical medicine. Dahl's sign.
authors: Johns Hopkins Hospital, Baltimore, MD elliottmiller@jhmi.edu.
authors: P Elliott
authors: PE
authors: Miller
authors: Brian A
authors: BA
authors: Houston
mesh_terms: D000368:Aged; D004417:Dyspnea / Q000209:etiology; D005260:Female; D006801:Humans; D017495:Hyperpigmentation / Q000209:etiology*; D029424:Pulmonary Disease, Chronic Obstructive / Q000150:complications*; D013848:Thigh / Q000473:pathology*