Recurrent hyper- and hyposomnia: a new diagnostic entity? Polysomnographic findings and a 30-year follow-up Recurrent hyper- and hyposomnia: a new diagnostic entity? Polysomnographic findings and a 30-year follow-up Download Preliminary evidence of behavioral and cognitive sequelae of obstructive sleep apnea in children Scoring variability between polysomnography technologists in different sleep laboratories