- Past-President, American Laryngological Society
- Past-President, American Bronchoesophagological Association
- Allergan, Inc Cosmetic Botulinum toxins and injectable fillers
- Merz Pharmaceuticals - Botulinum toxins for Therpeutic Indications
- Revance Pharmaceuticals- Botulinum toxins for cosmetic indications
- Lisa Lasers- Thullium lasers for rhinologic and laryngologic indications
- Neurologic Disorders of the Larynx- 2nd edition, Thieme Medical Publishers
- Botulinum Neurotoxin for Head and Neck Disorders, Thieme Medical Publishers
- International Voice Symposium
- Seoul Korea, 2012
- The Blanchard-Kleinman Lecturer
- University of Maryland, June, 2009
- The Goldman/Biller Lecturer
- Mt. Sinai School of Medicine, June 2009
- The Steven Gray Memorial Lecture
- The University of Utah, June 2009
- The J. Floyd Kyser, MD Lecturer
- The University of Arkansas, June, 2011
- The 2nd Clyde B Alley Lecturer
- Vanderbilt University, December 2011
- International Laser in Laryngology Symposium Paris, France April 2010
- European Dystonia Meeting Hanover, Germany May 2010
- World Voice Meeting Seuol, Korea August 2010
- Laryngology and Voice Surgery Harvard Medical School, Boston, September, 2010.
- Co- Investigator Double-Blind, placebo controlled study of the use Botox (Botulinum toxin A) for the management of Trigeminal Neuraligia 2006 to 2011 PI- David Sirois, DDS, PhD (NYU)
- Co-Investigator DNA analysis for spontaneous mutations in Idiopathic focal dystonia PI- Mark LeDoux, MD, PhD (U. Tenn-Memphis)
- Co-Investigator Merz Pharmaceuticals Prospective, double-blind, placebo controlled, randomized, multi-center trial with open-label Extension Period to investigate the efficacy and safety of different doses of NT 201 in the treatment of blepharospasm 2007 to 2009.
- Co-Investigator Revance Therapeutics Prospective, double-blind, placebo controlled, randomized trial of a polypeptide-botulinum toxin complex for the management of lateral canthal lines 2008-2010
- Principle Investigator 25 year DataBase for Botulinum toxin therapy safety and efficacy- Unrestricted Research Funding- Allergan, Inc 2011 to present
- Principle Investigator Prospective, double-blind, placebo controlled, randomized trial of Xeomin (Botulinum toxin A)for the Treatment of Subjects with Painful Temporomandibular Disorders (TMD) Unrestricted Research Funding- Merz Pharmaceuticals 2011 to present
- Co-Investigator Dystonia Coalition Projects - Spasmodic Dysphonia Christy Ludlow, PhD and Buzz Jinnah, MD, PhD Principle Investigators