Mokken scaling of the Epworth Sleepiness Scale items in patients with the sleep apnoea/hypopnoea syndrome.
Kingshott
R
R
Douglas
N
N
Deary
I
I
D006970:Disorders of Excessive Somnolence / Q000175:diagnosis*; D006801:Humans; D012891:Sleep Apnea Syndromes / Q000175:diagnosis*; D011795:Surveys and Questionnaires