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Contributors SSdesigned the study, collected data, analysed data, collected patients’ data, performed liver biopsy and wrote the manuscript. GC collected patients’ data and performed LB. CJP designed the study, collected data, analysed data and wrote the manuscript.
Funding This study was supported in part by grants UBACYT CM04 (Universidad de Buenos Aires), PICT 2008-1521 and 2010-0441 (Agencia Nacional de Promoción Científica y Tecnológica).
Competing interests SS and CJP belong to Consejo Nacional de Investigaciones Científicas y Tecnicas (CONICET).
Patient consent Obtained.
Ethics approval Ethical Committee of the Hospital Zubizarreta. GCBA.
Provenance and peer review Not commissioned; externally peer reviewed.
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