PUCRJ-PUCPR-UFMG at eHealth-KD Challenge 2021: A Multilingual BERT-based System for Joint Entity Recognition and Relation Extraction. - Lucas Pavanelli; Elisa Terumi Rubel Schneider; Yohan Bonescki Gumiel; Thiago Castro Ferreira; Lucas Ferro Antunes de Oliveira; João Vitor Andrioli de Souza; Giovanni Pazini Meneghel Paiva; Lucas Emanuel Silva e Oliveira; Claudia Maria Cabral Moro; Emerson Cabrera Paraiso; Adriana S. Pagano (IberLEF@SEPLN, 2021)