- Guthrie Robert Packer Hospital
- Neuromuscular Disorders
- Sleep Disorders
- Nassau County Medical Center, SUNY Stony Brook, East Meadow, N.Y.; Temple University and School of Medicine, Philadelphia, Pa.
- American Academy of Sleep Medicine
- American Academy of Neurology, American Board of Sleep Medicine
- University of Chile, Santiago, Chile
- Temple University Hospital, Philadelphia, Pa.