（The Johns Hopkins Hospital）

Built in 1889, it is a large general hospital located in Baltimore, Maryland, USA. The hospital has been named the best hospital in the nation by U.S. News & World Report for 23 consecutive years.

Johns Hopkins Hospital created many firsts in the history of medicine, including the first complete gender reassignment surgery, the first heart bypass surgery, and the first neonatal tetralogy of Fallot surgery.

The Hopkins Hospital was the first in the world to use rubber gloves in surgery, CPR, and kidney dialysis.

The polio virus was isolated for the first time at Hopkins Hospital, the restriction enzymes of DNA were

discovered, and endorphins were discovered.

Research at Hopkins is dedicated to research institutions in brain science, cell engineering, diabetes

and genetic medicine.

Hopkins can claim several medical firsts, such as developing kidney dialysis, isolating and crystallizing

insulin, and inventing rechargeable implantable pacing.