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Institutional Ethical Committee (IEC) approval from Acharya Harihar Regional Cancer Center (AHRCC), Cuttack, Odisha, India (Approval Letter no: 067-IEC-AHRCC) was acquired and written informed consent was obtained from the study participants before taking the samples.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval and consent to participate"}}]}}