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 E05 Investigative Techniques D008919 +
  E05.318 Epidemiologic Methods D004812 +
   E05.318.308 Data Collection D003625 +
    E05.318.308.250 Health Surveys D006306 +
     E05.318.308.250.700 Population Surveillance D011159 +
       E05.318.308.250.700.650 Sentinel Surveillance D018571 

 G03 Environment and Public Health D004778 +
  G03.850 Public Health D011634 +
   G03.850.520 Epidemiologic Methods D004812 +
    G03.850.520.308 Data Collection D003625 +
     G03.850.520.308.250 Health Surveys D006306 +
      G03.850.520.308.250.700 Population Surveillance D011159 +
        G03.850.520.308.250.700.650 Sentinel Surveillance D018571 

 G03 Environment and Public Health D004778 +
  G03.850 Public Health D011634 +
   G03.850.780 Public Health Practice D015980 +
    G03.850.780.675 Population Surveillance D011159 +
      G03.850.780.675.650 Sentinel Surveillance D018571 

 N05 Health Care Quality, Access, and Evaluation D017530 +
  N05.715 Quality of Health Care D011787 +
   N05.715.360 Health Care Evaluation Mechanisms D017531 +
    N05.715.360.300 Data Collection D003625 +
     N05.715.360.300.375 Health Surveys D006306 +
      N05.715.360.300.375.625 Population Surveillance D011159 +
        N05.715.360.300.375.625.650 Sentinel Surveillance D018571