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Yet recent research co-authored by a Michigan State University business scholar found nearly 1,800 occurrences of large data breaches in patient information over a seven - year period .
 patient information: compromised data; seven - year period: time
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: data breach 
  Option: victim, attacker, attack pattern, purpose, damage amount, tool, time, place, number of victim, compromised data, number of data 
Text: {0} 
Answer:
 patient information: compromised data; seven - year period: time