1. Granulation tissue removal in routine and minimally invasive surgical procedures;Harrel;Compendium of Continuing Education in Dentistry,1995
2. A minimally invasive surgical approach for bone grafting;Harrel;The International Journal of Periodontics & Restorative Dentistry,1998
3. A minimally invasive surgical approach for periodontal regeneration: Surgical technique and observations;Harrel;Journal of Periodontology,1999
4. Long-term results of a minimally invasive surgical approach for bone grafting;Harrel;Journal of Periodontology,1999
5. Treatment of periodontal destruction associated with a cemental tear using minimally invasive surgery;Harrel;Journal of Periodontology,2000