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• His mask: keeps him on the job

  • Uploaded by: National Library of Medicine
  • License: No known copyright restrictions
  • 0 comments
  • 13 favorites
  • 6,641 views
  • Date uploaded: 2020-07-31
  • Tags: mask, photomechanicalprint, mouth, nose, respiratory, lungdisease, healthbehavior, preventioncontrol, publichealthservice, stillimage, nationallibraryofmedicine, imagesfromthehistoryofmedicine, ihm, historyofmedicinedivision, publicdomain, archivesofmedicine, nlmdigitalcollection
  • Visibility: public