DOI:
10.1055/s-00000022
Das Gesundheitswesen
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References
Hunger M, Schwarzkopf L, Heier M. et al.
Official statistics and claims data records indicate non-response and recall bias within survey-based estimates of health care utilization in the older population.
BMC Health Services Research 2013;
13: 1 doi:10.1186/1472-6963-13-1
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