Ali, Banaz Jabbar, Alyamama Mahmood Alwan, and Chinar Jabbar Ali. 2020. “Referral Pattern of Periodontal Disease Among General Dental Practitioners in Iraq”. Brazilian Dental Science 23 (4). São José dos Campos, Brazil:7p. https://doi.org/10.14295/bds.2020.v23i4.2036.