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Haleyevette Haleyevette
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6 years ago
Which of the following is responsible for the dramatic increase in life expectancy during the twentieth century?
 
  a. Technology increases in the field of medical laboratory research
  b. Advances in surgical techniques and procedures
  c. Sanitation and other public health activities
  d. Use of antibiotics to fight infections
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rayohn2010rayohn2010
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6 years ago
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Haleyevette Author
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6 years ago
this is exactly what I needed
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This site is awesome
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2 hours ago
Good timing, thanks!
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