AO is grateful for its strategic partnership with Compendium.  The September issue features a tribute to Dr. D. Walter Cohen, in addition, AO branded content:

https://www.aegisdentalnetwork.com/cced/2019/09/digital-edition/

Page 507         AO-HSC Holocaust Survivors Oral Health Program:  Focus on Lab Partners 

Page 508         Intraoral Air Abrasion:  A Review of Devices, Materials, Evidence, and Clinical Applications in Restorative Dentistry
                         Chan-Te Huang, DDS; Jihyon Kim, DDS; Celin Arce, DDS; and Nataniel C. Lawson, DMD, PhD
 Page 533         AO Los Angeles Convention Continuing Education Information