TNFSF4 and neoplasm: For descriptive purposes (Fig. 2), we sought to assess the pattern of OX40 and OX40L expression in various tumor types such as OX40 high plus OX40L low-moderate expression, OX40 low-moderate plus OX40L high, OX40 high plus OX40L high, and OX40 low-moderate plus OX40L low-moderate.