Perez-Gutthann S, de Abajo F, Garcia Rodriguez LA, Varas-Lorenzo C, Gutierrez L, Castellsague J. Pharmacoepidemiology: Epidemiology applied to pharmaceutical development, safety and risk. In: Hernández G, Moreno A, Zaragoza F, Porras A, editors. MEDIPHARM: Tratado de Medicina Farmacéutica. Madrid: Spain. Médica Panamericana; 2010.