.. The now retracted paper halted hydroxychloroquine trials. Studies like this determine how people live or die tomorrow. James HeatherFri Jun 2020 08.50 BSTLast modified on Fri 5 Jun 2020 09.33 BST The Lancet is one of the oldest and most respected medical journals … Continue reading Retraction: Hydroxychloroquine or chloroquine with or without a macrolide for treatment of Covid-19: a multinational-registry analysis.