Rev Neurol France
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Despite the fact that anti-muscle specific tyrosine kinase (MuSK) antibodies have been discovered for seven years, only a few studies have, until now, focused on myasthenia without acetylcholine-receptors antibodies (ab) (formerly known as "seronegative myasthenia"), and among them, anti-MuSK-antibody-positive and -negative patients. ⋯ These results both confirm and complete the preexisting data on RACh-negative myasthenia, and especially on myasthenia associated with MuSK antibodies.