1. Brown University, Dept. of Family Medicine, Box G-A1, Providence, RI 02912, US
2. Never Again Consulting, 8 N. Main St., Ste. 404, Attleboro, MA 02703, US, T. T.
3. University of Alaska–Fairbanks, College of Engineering and Mines, PO Box 755960, Fairbanks, AK 99775-5960, US
4. MAS, LLC, 3945 Lakefield Ct., Suwanee, GA 30024, US