Abstract Background Congenital myasthenic syndromes (CMSs) are a group of inherited disorders of neuromuscular transmission that may be presynaptic. synaptic. or postsynaptic. Causative mutations have been identified in 4 breeds including the Labrador Retriever. https://www.spidertattooz.com/Orly-Nail-Lacquer-For-The-First-Time-20931-p28703/