The ketchup-bottle method

N Engl J Med. 1979 May 17;300(20):1155-7. doi: 10.1056/NEJM197905173002008.
No abstract available

Publication types

  • Editorial

MeSH terms

  • Bronchi / metabolism*
  • Humans
  • Lung Diseases, Obstructive / therapy
  • Physical Therapy Modalities*
  • Pneumonia / therapy
  • Respiratory Therapy*
  • Sputum*