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, vol. 9, no. 3, Nov. 2017, pp. 289-94, doi:10.23805/jo.2017.09.03.04.