Limb movements during sleep in children: effects of age, sex, and iron status in more than 1,000 patients referred to a pediatric sleep center Limb movements during sleep in children: effects of age, sex, and iron status in more than 1,000 patients referred to a pediatric sleep center Download Images: Facial cataplexy with demonstration of persistent eye movements Long-term effects of cardiac rehabilitation on sleep apnea severity in patients with coronary artery disease