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In page Chemotherapy-induced peripheral neuropathy:

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There are also personal and treatment characteristics that may be potential risk factors: 1) Older age 2) Chemotherapy type 3) Cumulative dosage of chemotherapy treatment 4) Smoking history 5) History of alcohol intake 6) Dietary history 7) Race 8) Gender 9) Inactive lifestyle.[4] In particular, the cumulative dosage of chemotherapeutic agents is a well-recognized risk factor of CIPN.[citation needed]