Validation: a dangerous and difficult claim to make.
Maurice M
MM
Ohayon
Christian
C
Guilleminault
D006801:Humans; D008403:Mass Screening; D011594:Psychometrics; D015203:Reproducibility of Results; D012148:Restless Legs Syndrome / Q000175:diagnosis* / Q000523:psychology; D012647:Self-Assessment; D011795:Surveys and Questionnaires / Q000592:standards*