Media type: E-Article Title: Long-Term Retrospective Observational Cohort Study on the Survival Rate of Stepped-Screw Titanium Implants Followed up to 20 Years Contributor: Lini, Francesco; Poli, Pier; Beretta, Mario; Cortinovis, Ivan; Maiorana, Carlo imprint: Quintessence Publishing, 2019 Published in: The International Journal of Oral & Maxillofacial Implants Language: Not determined DOI: 10.11607/jomi.7007 ISSN: 0882-2786 Keywords: General Medicine ; Oral Surgery Origination: Footnote: