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On December 21 , 2016 , Children 's Hospital Los Angeles learned that an unencrypted laptop containing patient data was stolen from the locked vehicle of a Children 's Hospital Los Angeles Medical Group physician on October 18 , 2016 .
 Children 's Hospital Los Angeles Medical Group physician: victim; patient data: compromised data; October 18 , 2016: time; laptop: victim; Children 's Hospital Los Angeles: victim; December 21 , 2016: 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:
 Children 's Hospital Los Angeles Medical Group physician: victim; patient data: compromised data; October 18 , 2016: time; laptop: victim; Children 's Hospital Los Angeles: victim; December 21 , 2016: time