Making a headache practice work: the elements of diagnosis and coding headache medicine.
Levin
Morris
M
Section of Neurology Dartmouth Hitchcock Medical Center, Lebanon, NH, USA.
D005568:Forms and Records Control / Q000379:methods* / Q000592:standards*; D006261:Headache / Q000175:diagnosis*; D006801:Humans; D038801:International Classification of Diseases; D009626:Terminology as Topic