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At birth, the infant had severe muscle weakness and respiratory distress. He had high titres of anti\u2010acetylcholine receptor (anti\u2010AChR) antibodies of maternal origin. Anti\u2010AChR antibodies were also found in stored samples of fetal serum and amniotic fluid. To our knowledge, this is the first case of neonatal myasthenia gravis for which neither past nor present evidence of disease could be obtained in the mother. Anti\u2010AChR antibody testing should be considered in cases of unexplained polyhydramnios.<\/jats:p>","DOI":"10.1002\/pd.1970130618","type":"journal-article","created":{"date-parts":[[2007,3,4]],"date-time":"2007-03-04T06:49:10Z","timestamp":1172990950000},"page":"539-542","source":"Crossref","is-referenced-by-count":22,"title":["Myasthenia gravis with polyhydramnios in the fetus of an asymptomatic mother"],"prefix":"10.1002","volume":"13","author":[{"given":"E.","family":"Verspyck","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"L.","family":"Mandelbrot","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"Dommergues","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C.","family":"Huon","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"F.","family":"Woimant","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C.","family":"Baumann","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"B. 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