Diagnostiskt Centrum (DC), Sweden's first specialized cancer diagnosis center, was established at Kristianstad General Hospital in 2012 as a model for reducing the time taken to diagnose cancer in primary care patients with diffuse, non-organ specific symptoms. If it is successful, the DC model could be rolled out to other areas of Sweden. This study by the Center for Primary Health Care Research in Malmö, Sweden and Regionalt cancercentrum syd will investigate whether the DC process reduces the time from (1) the point when the patient first contacts his/her primary care center with symptoms to (2) the point when he/she is informed about his/her diagnosis (of cancer or another disease). This will be achieved by comparison with matched control patients with suspected cancer who will be referred to Helsingborg General Hospital for further investigation according to existing diagnostic procedures. Various outcome measures will be investigated, and patients' experiences of the DC process will be assessed using a tailored questionnaire. In addition, the DC model will be subjected to health economics analysis.