Mayo Clinic, Rochester, Minnesota, United States
McGill University - Montreal General Hospital, Montreal, Quebec, Canada
VA Hospital UCSD, San Diego, California, United States
Diabetes and Endocrine Associates, La Jolla, California, United States
Diablo Clinical Research, Walnut Creek, California, United States
Diablo Clinical Research, Walnut Creek, California, United States
Springfield Diabetes and Endocrine Center, Springfield, Illinois, United States
MedStar Clinical Research Center, Washington, District of Columbia, United States