Patients will collect stool for microbiome analysis at baseline (i.e., 3 +2 days prior to chemotherapy) and again 5-7 days following initiation of chemotherapy.
Blood samples will be collected prior to their first chemotherapy treatment, and in the second week after chemotherapy. The blood sample will be used for several assays that include gene expression, immune cell profiling, metabolite analytics, and additional omics assays.
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