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Open Access Study protocol

Implementation of a population-based epidemiological rare disease registry: study protocol of the amyotrophic lateral sclerosis (ALS) - registry Swabia

Gabriele Nagel*, Hatice Ünal, Angela Rosenbohm, Albert C Ludolph, Dietrich Rothenbacher and the ALS Registry Study Group

BMC Neurology 2013, 13:22  doi:10.1186/1471-2377-13-22

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