It is observed, on Table 2, that studies were institutional 11 or multicentric 8, and one of them was an international multicentric study.
Se observa en la Tabla 2 que los estudios fueron institucionales 11 o multicentro 8, siendo uno de ellos multicentro internacional.
Observa-se, na Tabela 2, que os estudos foram institucionais 11 ou multicêntricos 8, sendo um deles multicêntrico internacional.