MARBiobank participated in the VII  Congreso Nacional de Biobancos-I Congreso Latinoamericano de Biobancos with the poster: Banco de líneas celulares: efecto de la criopreservación  en la viabilidad celular a lo largo del tiempo, in the topic Quality in Biobanks. The poster reviews the cryopreservation effects on cell viability over time. Our objective was to stablish a systematic quality control to ensure the correct cell line preservation.