1805
Based on the Naranjo algorithm, the adverse reaction observed was probably related to the hydroxyurea treatment (score = 6); however, the hydroxyurea chemotherapy could not be discontinued because of the myeloproliferative disorder.
 myeloproliferative disorder: Effect; hydroxyurea chemotherapy: Treatment; hydroxyurea: Treatment.Drug; hydroxyurea: Treatment.Drug; chemotherapy: Treatment.Route
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: adverse event 
  Option: Treatment.Freq, Subject.Population, Combination.Drug, Subject.Gender, Treatment.Duration, Subject, Effect, Treatment, Treatment.Disorder, Subject.Disorder, Treatment.Route, Subject.Race, Treatment.Time_elapsed, Treatment.Dosage, Subject.Age, Treatment.Drug 
Text: {0} 
Answer:
 myeloproliferative disorder: Effect; hydroxyurea chemotherapy: Treatment; hydroxyurea: Treatment.Drug; hydroxyurea: Treatment.Drug; chemotherapy: Treatment.Route