Myasthenic Syndromes, CongenitalLambert-Eaton Myasthenic SyndromePortraits as TopicMedicine in ArtSolidagoMyasthenia GravisSyndromeReceptors, CholinergicParaneoplastic SyndromesMotor EndplateNeuromuscular JunctionNeuromuscular Junction DiseasesMuscular DiseasesNeuromuscular DiseasesCarcinoma, Small CellMuscle WeaknessAcetylcholinesteraseAutoantibodiesCholine O-AcetyltransferaseMutationCholinesterase InhibitorsDNA Mutational AnalysisMuscle ProteinsReceptors, NicotinicCalcium ChannelsPedigreeElectromyographyLung Neoplasms4-AminopyridineBungarotoxinsAcetylcholineDown SyndromeMetabolic Syndrome XMolecular Sequence DataPatch-Clamp TechniquesMuscle, SkeletalImmunoglobulin GSynaptic TransmissionAmino Acid Sequenceomega-Conotoxin GVIAMusclesAction Potentials