Andrikopoulou, E., S. Kourtis, S. Damaskos, and K. Tsiklakis. 2019. “Detecting Bone Changes Along Dental Implants, After Immediate or Delayed Loading, Using Digital Subtraction on Cropped Panoramic Radiographs. A Prospective Clinical Trial With Minimum 3-Year Follow up”. Journal of Osseointegration 11 (1):11-20. https://doi.org/10.23805/JO.2019.11.01.03.