Borgonovo, A. E., V. Vavassori, V. Moramarco, F. Ugolini, G. Brunelli, and D. Re. “Crestal Sinus Lift Combined With Single and Multiple Implant Placement Using a New Atraumatic Technique. Report of Two Cases”. Journal of Osseointegration 9, no. 3 (November 21, 2017): 289–94. Accessed April 25, 2024. https://www.journalofosseointegration.eu/jo/article/view/165.