[disease characterized by progressive weakness and exhaustibility of voluntary muscles without atrophy or sensory disturbance and caused by an autoimmune attack on acetylcholine receptors at the neuromuscular junction. ( CSP )] (UMLS (CSP) C0026896) =Disease or Syndrome =autoimmune disease; myoneural disorder; Autoimmune Diseases of the Nervous System; Neuromuscular Junction Diseases =Myasthenia Gravis, Neonatal; Myasthenia Gravis, Experimental Autoimmune;