?:authorAffiliation
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[\'GI Unit, 3rd Department of Internal Medicine, National and Kapodistrian University of Athens, Athens, Greece.\', \'Immunobiology and Vaccinology Research Lab, First Department of Paediatrics, \'Aghia Sophia\' Children\'s Hospital, National and Kapodistrian University of Athens, Athens, Greece.\', \'3rd Department of Internal Medicine, National and Kapodistrian University of Athens, Sotiria Hospital, Athens, Greece.\', \'Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece.\']
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