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Start Over Collections Images from the History of Medicine (IHM) ✖Remove constraint Collections: Images from the History of Medicine (IHM) Subjects Anesthesia, Dental ✖Remove constraint Subjects: Anesthesia, Dental Titles Due to the "gas" shortage, we must use other methods ✖Remove constraint Titles: Due to the "gas" shortage, we must use other methods

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  • Due to the "gas" shortage, we must use other methods1