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We report a child with yolk sac tumor who developed localized pigmentation after the first course of chemotherapy regimen that included cisplatin, etoposide and bleomycin.
 ( adverse event: after ,  a child with yolk sac tumor: Subject, child: Subject.Age, localized pigmentation: Effect, the first course of chemotherapy regimen that included cisplatin, etoposide and bleomycin: Treatment, the first course: Treatment.Duration, cisplatin: Treatment.Drug, etoposide: Treatment.Drug, bleomycin: Treatment.Drug, yolk sac tumor: Treatment.Disorder, cisplatin: Combination.Drug, etoposide: Combination.Drug, bleomycin: Combination.Drug) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: adverse event,potential therapeutic event, Arguments type: Treatment.Disorder,Treatment.Time_elapsed,Treatment.Dosage,Subject.Race,Treatment.Drug,Treatment.Route,Subject.Disorder,Treatment.Freq,Treatment,Effect,Subject.Population,Treatment.Duration,Combination.Drug,Subject,Subject.Age,Subject.Gender. 
Text: {0} 
Answer:
 ( adverse event: after ,  a child with yolk sac tumor: Subject, child: Subject.Age, localized pigmentation: Effect, the first course of chemotherapy regimen that included cisplatin, etoposide and bleomycin: Treatment, the first course: Treatment.Duration, cisplatin: Treatment.Drug, etoposide: Treatment.Drug, bleomycin: Treatment.Drug, yolk sac tumor: Treatment.Disorder, cisplatin: Combination.Drug, etoposide: Combination.Drug, bleomycin: Combination.Drug) 