Table 1.
Participating institutions
| Arizona | Minnesota | Pennsylvania |
| Phoenix | St. Paul | Harrisburg |
| Banner Good Samaritan Medical Center | Regions Hospital | Harrisburg Hospital |
| Phoenix Children’s Hospital | Philadelphia | |
| Missouri | Einstein Medical Center | |
| California | Kansas City | Hahnemann University Hospital |
| Fresno | Children’s Mercy Hospital & Clinics | St. Christopher’s Hospital for Children |
| UCSF Fresno Medical Center | St. Louis | Mercy Fitzgerald Hospital |
| Los Angeles | Barnes Jewish Hospital | Mercy Philadelphia Hospital |
| USC Verdugo Hills Hospital | Einstein Medical Center Montgomery | |
| San Francisco | Nebraska | Einstein Medical Center Elkins Park |
| San Francisco General Hospital | Omaha | Pittsburgh |
| University of Nebraska Medical Center | UPMC Presbyterian/Shadyside | |
| Colorado | UPMC Children’s Hospital of Pittsburgh | |
| Denver | New Jersey | UPMC Magee Women’s Hospital |
| Denver Health Medical Center | Morristown | |
| University of Colorado Hospital | Morristown Medical Center | Texas |
| Porter and Littleton Adventist Hospital | New Brunswick | Dallas |
| Children’s Hospital Colorado | Robert Wood Johnson University Hospital | Parkland Memorial Hospital |
| Swedish Medical Center | Newark | Children’s Medical Center of Dallas |
| University Hospital | UT Southwestern Medical Center | |
| Connecticut | Newark Beth Israel Medical Center | Houston |
| Hartford | Ben Taub General Hospital | |
| Hartford Hospital | New York | Texas Children’s Hospital |
| CT Children’s Medical Center | Manhasset | San Antonio |
| North Shore University Hospital | San Antonio Military Medical Center | |
| Indiana | New Hyde Park | |
| Indianapolis | Long Island Jewish Medical Center | Utah |
| IU Health Methodist Hospital | New York | Salt Lake City |
| Wishard Memorial Hospital | Mount Sinai Hospital | Primary Children’s Hospital |
| Riley Hospital for Children | Staten Island University Hospital | University Hospital |
| IU Health University Hospital | Bellevue Hospital Center | |
| NYU Langone Medical Center | Virginia | |
| Illinois | Elmhurst Medical Center | Charlottesville |
| Chicago | Rochester | University of Virginia Health Systems |
| John H. Stroger, Jr. Hospital of Cook County | Strong Memorial Hospital | Richmond |
| Evanston | Huther Doyle | VCU Medical Center |
| North Shore University Health System | Highland Hospital | |
| Wisconsin | ||
| Massachusetts | North Carolina | Milwaukee |
| Boston | Charlotte | Froedtert Hospital |
| Beth Israel Deaconess Medical Center | Carolinas Medical Center | Children’s Hospital of Wisconsin |
| Boston Children’s Hospital | ||
| Worcester | Ohio | Australia |
| UMass Memorial Medical Center | Cincinnati | Blacktown, New South Wales |
| Cincinnati Children’s Hospital Medical Center | Blacktown and Mt. Druitt Hospital | |
| Michigan | ||
| Grand Rapids | Oregon | Israel |
| Spectrum Health Hospitals | Portland | Haifa |
| Oregon Health & Science University Hospital | Rambam Health Care Campus | |
| Doernbecher Children’s Hospital |