What is the fine-grained topic of the following text: Items where Author is "Curtis, Chris"
Curtis, Chris, Nicotera, Alessia, Griseri, Carlotta and Roddam, Hazel ORCID: 0000-0002-0637-1801 (2018) Patient Reports of Mouth Symptoms after Radiotherapy Treatment for Head and Neck Cancer: An International Survey. Only return the topic.
Patient's mouth symptoms after radiotherapy treatment for head and neck cancer.