| http://www.w3.org/ns/prov#value | - LGS is characterized by a clinical triad of a slow spike-and-wave pattern on an EEG, impairment of cognitive function and multiple types of seizures, including tonic (muscle stiffening), atypical absence (staring) and atonic (loss of muscle tone) seizures being the most common.Tonic and atonic seizures, also known as drop attacks, cause the body to fall uncontrollably, and are a primary cause of
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