Fig. 2From: Professional oral care in end-of-life patients with advanced cancers in a hospice ward: improvement of oral conditionsThe mucositis classification of WHO was examined by professional dentist. The presence of mucositis (grades I–IV) and absence of mucositis (grade 0) in end-of-life patients with advanced cancers. Representative diagrams: (a) No mucositis, (b) WHO grade 1, (c) WHO grade 2, (d) WHO grade 3; (e) WHO grade 4Back to article page