summarize the interventions in a list in order that is used in the following text: "Participants will receive pembrolizumab 200 mg IV Q3W in combination with 3 cycles of the investigator's choice of platinum doublet chemotherapy and concurrent standard thoracic radiotherapy (60 Gy over 6 weeks) followed by pembrolizumab plus olaparib 300 mg BID for approximately 1 year." The word "text" should not appear in your response.
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