Barriers of Access to Opioid Medicines within the Context of Palliative Care in Latin America: The Perception of Health Professionals

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Vahos, J; Rojas-Cortes, R; Daza, D; Osorio-Florez, LC; Saint-Gerons, DM; Pastrana, T; Munoz, S; Fitzgerald, J; Porras, A; Luciani, S; Castro, JL