Devising and validating a headache diary in a series of patients with chronic daily headache from Colombia

by Gabriel F Torres, Martha I. Otálvaro, Juan C. Vargas, Yulexi Castellanos, Jeimy Xiomara García, Javier D. Triana, Cesar A. Forero, Carlos D. Guevara, Rodrigo Pardo
Published 2012-01-01