Comparison of salivary epidermal growth factor levels in patients with gingivitis and advanced periodontitis and healthy subjects. - Moosavijazi, Mahvash; Rasouli Ghahroudi, Amir Alireza; Yaghoobee, Siamak; Bayani, Mojtaba; Salehi, Eisa; Sadrimanesh, Roozbeh (Frontiers in Dentistry)