"myasthenia gravis"^^ . "113276466"@en-us . "14078871-n"^^ . . . "114078871"^^ . . . . . "a chronic progressive disease characterized by chronic fatigue and muscular weakness (especially in the face and neck); caused by a deficiency of acetylcholine at the neuromuscular junctions"@en-us . . . . . "myasthenia"@en-us . . "0.5"^^ . "myasthenia gravis"@en-us . . "0.125"^^ . .