1. 1Periodontology Department, Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Egas Moniz, CRL, Monte de Caparica, Portugal
2. 2Clinical Research Unit (CRU), CiiEM, Egas Moniz, CRL, Monte de Caparica, Portugal
3. 3Quantitative Methods for Health Research Unit (MQIS), CiiEM, Egas Moniz, CRL, Monte de Caparica, Portugal