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          - Why should some research on humans be exemptedfrom regulation?
 
               
          - What other criteria could be used to identify necessary members 
            for IRBs?
 
               
          - What should subjects know about proposed research andtheir protection 
            before they enroll as subjects?
 
               
          - What other principles could be used for evaluating the ethics of 
            human subjects research besides respect for persons, beneficence, 
            and justice?
 
               
          - Should subjects be allowed to enroll in experiments that either 
            promise no direct benefit to them or cannot provide them with the 
            opportunity to withdraw completely? 
 
         
       
      
           
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