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[Validation of secondary data. Strengths and limitations].
Hoffmann F, Andersohn F, Giersiepen K, Scharnetzky E, Garbe E. Hoffmann F, et al. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz. 2008 Oct;51(10):1118-26. doi: 10.1007/s00103-008-0646-y. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz. 2008. PMID: 18985405 German.
1,182 results