1. Boulder Centre for Orthopaedics, 4740 Pearl Pkwy #200A, Boulder, CO 80301, USA
2. University of Illinois at Chicago, 1200 W Harrison St., Chicago, IL 60607, USA
3. Case Western Reserve University, 9501 Euclid Ave, Cleveland, OH 44106, USA
4. American Hip Institute Research Foundation, 999 E Touhy Ave. Ste. 450, Des Plaines, IL 66018, USA
5. Kayal Orthopedics, 260 Old Hook Rd #401, Westwood, NJ 07675, USA
6. Hasassah Hebrew University Hospital, Jersalem, Israel
7. American Hip Institute, 999 E Touhy Ste. 450, Des Plaines, IL 60018, USA