(Q53178848)
Statements
Chronic headache and comorbidities: a two-phase, population-based, cross-sectional study (English)
Ariovaldo da Silva
Esther Coelho Costa
João Bosco Gomes
Frederico Motta Leite
Rodrigo Santiago Gomez
Luiz Paulo Vasconcelos
Abouch Krymchantowski
12 February 2010
1 reference