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Journal
Cephalalgia
Volume
28
Issue
12
Pages
1264-9
Publication year
2008
Suggested citation
Queiroz LP, Peres MFP, Kowacs F, Piovesan EJ, Ciciarelli MC, Souza JA, Zukerman E. Chronic daily headache in Brazil: a nationwide population-based study. Cephalalgia. 2008; 28(12): 1264-9.