Myasthenia gravis is a rare neuromuscular condition caused by poor communication between nerve endings and muscle fibers, which presents with muscle fatigue and weakness. The symptoms of this disorder can vary dramatically depending on specific muscles or muscle groups it affects.
Author: Mike Nova
The top 10 renewable energy companies in the USA ranked by revenue include Constellation Energy Corporation, Duke Energy Corporation & The Southern Company Renewable energy generates about 20% of all electricity in the USA — a percentage that is continually growing, according to the Office of Energy Efficiency and Renewable Energy.
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