Periodic limb movement disorder (PLMD) | Periodic limb movement disorder | Nocturnal Myoclonus Syndrome | Myoclonus Syndrome, Nocturnal | Nocturnal Myoclonus Syndromes | Syndrome, Nocturnal Myoclonus | Periodic Leg Movements, Excessive, Sleep-Related | Sleep Myoclonus Syndrome | Myoclonus Syndrome, Sleep | Myoclonus Syndromes, Sleep | Sleep Myoclonus Syndromes | Syndrome, Sleep Myoclonus | Syndromes, Sleep Myoclonus | Periodic Movement Disorder, Sleep | Sleep Disorder, Periodic Movements | Sleep-Related Periodic Leg Movements, Excessive | Sleep Related Periodic Leg Movements, Excessive | Excessive Periodic Sleep-Related Leg Movements | Excessive Periodic Sleep Related Leg Movements | Periodic Limb Movement Disorder |