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Calvo MV, Martin-Suarez A, Martin Luengo C, Avila C, Cascon M, Domínguez-Gil Hurlé A.Calvo MV, et al.Ther Drug Monit. 1989;11(1):10-5. doi: 10.1097/00007691-198901000-00003.Ther Drug Monit. 1989.PMID: 2911842