TY - GENERIC DO - 10.20944/preprints202007.0087.v1 UR - http://dx.doi.org/10.20944/preprints202007.0087.v1 TI - Covid-19: Back to Classes in Brazil From a Bioecological Perspective T2 - Preprints AU - Abad, Alberto AU - Abad, ThaĆ­s Marques PY - 2020 DA - 2020/07/05 PB - Preprints