title: Disease definition and measures of disease frequency.
authors: Department of Dermatology, Queen's Medical Center, University of Nottingham, United Kingdom. hywel.williams@nottingham.ac.uk
authors: H
authors: H
authors: Williams
mesh_terms: D003876:Dermatitis, Atopic / Q000175:diagnosis* / Q000453:epidemiology; D003937:Diagnosis, Differential; D006801:Humans; D015995:Prevalence; D012720:Severity of Illness Index; D009626:Terminology as Topic