Affiliation: | 1. Periodontology Department, Egas Moniz Dental Clinic (EMDC), Egas Moniz, CRL, Monte de Caparica, Portugal;2. Quantitative Methods for Health Research Unit (MQIS), EMIRC, Egas Moniz, CRL, Monte de Caparica, Portugal;3. Clinical Research Unit (CRU), Egas Moniz Interdisciplinary Research Center (EMIRC), Egas Moniz, CRL, Monte de Caparica, Portugal;4. School of Dentistry, University of Siena, Siena, Italy |