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CONCLUSIONS: Low dosages of quinacrine used for malaria prophylaxis can be associated with a delayed, severe maculopathy indistinguishable from chloroquine maculopathy in certain patients.
 a delayed, severe maculopathy: Effect; Low dosages of quinacrine used for malaria prophylaxis: Treatment; delayed: Treatment.Time_elapsed; Low dosages: Treatment.Dosage; quinacrine: Treatment.Drug; malaria prophylaxis: Treatment.Disorder
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:
 a delayed, severe maculopathy: Effect; Low dosages of quinacrine used for malaria prophylaxis: Treatment; delayed: Treatment.Time_elapsed; Low dosages: Treatment.Dosage; quinacrine: Treatment.Drug; malaria prophylaxis: Treatment.Disorder