779
By means of the in vitro heparin-induced platelet activation (HIPA) assay it was shown that standard heparin and the LMW heparins Fragmin and Fraxiparin (Sanofi Labaz, Munich, FRG), as well as the enoxaparine Clexane (Nattermann, Cologne, FRG), all induced platelet activation with the patient's serum.
 adverse event: induced 
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: adverse event, potential therapeutic event 
Text: {0} 
Answer:
 adverse event: induced 