The CSBS has established sub-groups to develop generic and tumour/service specific clinical standards in each of these areas.National clinical audits funded by the Executive's Clinical Resource and Audit Group are also underway, or will commence shortly, in gastric-oesophageal, urological and head and neck cancers and will provide the basis for QA and the development of clinical standards in these tumour types.The Scottish Intercollegiate Guidelines Network (SIGN), also funded by the Executive, has published national clinical guidelines for breast, colorectal, lung and testicular cancer.