Cedars-Sinai Medical Center, The Angeles Clinic and Research Institute, Los Angeles, California, United States
Baylor St Luke's Medical Center, Houston, Texas, United States
Uppsala University Hospital, Uppsala, Sweden
Karolinska University Hospital, Huddinge, Stockholm, Sweden
Uppsala University Hospital, Uppsala, Sweden
Baylor College of Medicine, Houston, Texas, United States
Baylor St Luke's Medical Center, Houston, Texas, United States