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Hopstadius, J., Norén, G.N., Bate, A. et al. Stratification for Spontaneous Report Databases. Drug-Safety 31, 1145–1147 (2008). https://doi.org/10.2165/0002018-200831120-00010
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DOI: https://doi.org/10.2165/0002018-200831120-00010