A replication drive focused on results that lean on three methods commonly used in biomedical research in Brazil. Credit: Mauro Pimentel/AFP/Getty In an unprecedented effort, a coalition of more than 50 research teams has surveyed a swathe of Brazilian biomedical studies to double-check their findings — with dismaying results.The teams were able to replicate the results of less than half of the tested experiments1. That rate is in keeping with that found by other large-scale attempts to reproduc...