Kansas City Bone and Joint Clinic, Overland Park, Kansas, United States
Newport Beach Clinical Research Associates, Inc., Newport Beach, California, United States
California Headache and Balance Center, Fresno, California, United States
Raj Maturi, MD PC, Indianapolis, Indiana, United States
Texas Retina Associates, Arlington, Arlington, Texas, United States
Bay Area Retina Associates, Walnut Creek, California, United States
Nihon University Hospital, Chiyoda-ku,Tokyo, Japan
1 Fukushima Medical University, Fukushima-shi, Japan
Kyushu University Hospital, Kita-ku, Fukuoka-shi Fukuoka, Japan
Andreas Reinhard Wicht, Sangerhausen, Germany
Franz Hirschle, Singen, Germany
Universitätsklinikum Münster, Münster, Germany