What is the fine-grained topic of the following text: To examine other possibilities, we established a clinically-relevant animal model of chronic sensory deficits: rats with colon cancer (APC+/Pirc) studied after a full course of treatment with the commonly used chemotherapeutic agent oxaliplatin (OX). Only return the topic.
Studying chronic sensory deficits in rats with colon cancer after treatment with oxaliplatin.