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1129-2377-14-11
1129-2377-14-11
http://dx.doi.org/10.1186/1129-2377-14-11
Period prevalence of self-reported headache in the general population in Germany from 1995-2005 and 2009: results from annual nationwide population-based cross-sectional surveys
P356
Q21146956-C7A7AC18-E758-45F9-9273-1421BD13FC8A
P356
1129-2377-14-11
http://dx.doi.org/10.1186/1129-2377-14-11