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 E01 Diagnosis D003933 +
  E01.370 Diagnostic Techniques and Procedures D019937 +
   E01.370.350 Diagnostic Imaging D003952 +
    E01.370.350.700 Radiography D011859 +
     E01.370.350.700.730 Radiography, Thoracic D013902 +
      E01.370.350.700.730.500 Mass Chest X-Ray D008400 

 E01 Diagnosis D003933 +
  E01.370 Diagnostic Techniques and Procedures D019937 +
   E01.370.386 Diagnostic Techniques, Respiratory System D003948 +
    E01.370.386.500 Mass Chest X-Ray D008400 

 E01 Diagnosis D003933 +
  E01.370 Diagnostic Techniques and Procedures D019937 +
   E01.370.500 Mass Screening D008403 +
    E01.370.500.500 Mass Chest X-Ray D008400 

 E05 Investigative Techniques D008919 +
  E05.318 Epidemiologic Methods D004812 +
   E05.318.308 Data Collection D003625 +
    E05.318.308.250 Health Surveys D006306 +
     E05.318.308.250.580 Mass Screening D008403 +
      E05.318.308.250.580.510 Mass Chest X-Ray D008400 

 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 +
      G03.850.520.308.250.580 Mass Screening D008403 +
       G03.850.520.308.250.580.510 Mass Chest X-Ray D008400 

 G03 Environment and Public Health D004778 +
  G03.850 Public Health D011634 +
   G03.850.780 Public Health Practice D015980 +
    G03.850.780.500 Mass Screening D008403 +
     G03.850.780.500.500 Mass Chest X-Ray D008400 

 N02 Health Care Facilities, Manpower, and Services D005159 +
  N02.421 Health Services D006296 +
   N02.421.143 Community Health Services D003153 +
    N02.421.143.827 Preventive Health Services D011314 +
     N02.421.143.827.233 Diagnostic Services D003954 +
      N02.421.143.827.233.443 Mass Screening D008403 +
       N02.421.143.827.233.443.443 Mass Chest X-Ray D008400 

 N02 Health Care Facilities, Manpower, and Services D005159 +
  N02.421 Health Services D006296 +
   N02.421.726 Preventive Health Services D011314 +
    N02.421.726.233 Diagnostic Services D003954 +
     N02.421.726.233.443 Mass Screening D008403 +
      N02.421.726.233.443.443 Mass Chest X-Ray D008400 

 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 +
      N05.715.360.300.375.500 Mass Screening D008403 +
       N05.715.360.300.375.500.500 Mass Chest X-Ray D008400