title: Spontaneous muscle fiber activity appears early in cases of obstetric brachial plexopathy.
mesh_terms: D001720:Birth Injuries / Q000150:complications*; D001917:Brachial Plexus / Q000503:physiopathology*; D020516:Brachial Plexus Neuropathies / Q000209:etiology* / Q000503:physiopathology*; D006801:Humans; D007231:Infant, Newborn; D018485:Muscle Fibers, Skeletal; D018482:Muscle, Skeletal / Q000503:physiopathology*; D010246:Paralysis, Obstetric / Q000150:complications