![Doctors perform open-heart surgery](images/nih_clinical_center_sm.jpg) | | Doctors perform open-heart surgery at the NIH Clinical Center, which has been the site of ground-breaking research,1970s. |
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![Scientists holding beakers with arms in rubber gloves through glass wall](images/cdc_biocontainment_sm.jpg) | | Scientists at the Centers for Disease Control and Prevention (CDC) work in biosafety cabinets in a maximum containment laboratory designed for the study of virulent microorganisms, 1980s. |
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![An aids researcher](images/aids_researcher_sm.jpg) | | A researcher at NIH studying AIDS, 1980s. |
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![Dr. Julius Axelrod](images/axelrod_sm.jpg) | | In 1970, Dr. Julius Axelrod of NIH received the Nobel Prize for his discoveries concerning transmitting substances in nerve terminals. |
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![Microbiologist Ida Bengston prepares tissue cultures](images/ida_bengston_sm.jpg) | | Microbiologist Ida Bengston prepares tissue cultures for work on Rocky Mountain Spotted Fever in the Hygienic Laboratory (forerunner of NIH), 1920s. |
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![Scientists at work in an early 20th century lab](images/early_lab_sm.jpg) | | Scientists at work in the early 20th century in the PHS Hygienic Laboratory (forerunner of NIH), which was established in 1887. |