|  |  |  | Clearly defined responsibilities of each 
        group as a whole and of each individual within the group that are articulated 
        to all collaboration participants at the beginning help to avoid confusion 
        and to ensure smooth coordination of activities. Responsibilities should 
        address issues such as: 
         Which group will be responsible for certain 
          hardware or software contributions to a larger study and to what extentWho will be the principal investigator 
          on any grant proposalWho will submit progress reports to funding 
          agenciesWho will authorize submission of manuscripts
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