Present distribution of diphtheria in the United States

समान संसाधन

• Diphtheria in the United States in 1956
  द्वारा: Moore, Helen A.
  प्रकाशित: (1958)
• The Present Problem of Diphtheria Control in the United States
  द्वारा: Page, Malcolm I.
  प्रकाशित: (1962)
• Diphtheria in the United States, 1971-81.
  द्वारा: Chen, R T, और अन्य
  प्रकाशित: (1985)
• Respiratory diphtheria in the United States, 1980 through 1995.
  द्वारा: Bisgard, K M, और अन्य
  प्रकाशित: (1998)
• The Present Status of Atmospheric Pollution in the United States
  द्वारा: Stern, Arthur C.
  प्रकाशित: (1957)