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Enlaces:[1] mailto:pepeguzman_esquivel@outlook.com [2] https://rpcec.sld.cu/sites/default/files/COMITE ETICA REGISTRO.docx [3] mailto:ivancoliman@hotmail.com [4] mailto: ivan_delgado_enciso@ucol.mx [5] https://rpcec.sld.cu/trials/RPCEC00000367-En