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Pedraza, María Isabel, Carolina de la Cruz, Marina Ruiz, Luis López-Mesonero, Elena Martínez, Mercedes de Lera, و Ángel Luis Guerrero. "OnabotulinumtoxinA Treatment for Chronic Migraine: Experience in 52 Patients Treated With the PREEMPT Paradigm." Springerplus 2015.

Pedraza, María Isabel, et al. "OnabotulinumtoxinA Treatment for Chronic Migraine: Experience in 52 Patients Treated With the PREEMPT Paradigm." Springerplus 2015.