ncology physicians find that resources are limited, they have too few instruments and too little equipment compared to the number of patients suffering from cancer and they want to treat as many patients as possible in the best way. However, the physician does not consider that resources are limited when deciding treatment for the individual patient. When deciding the inclusion criteria for a clinical trial, physicians firstly have the present patient in focus and consider how this experiment can benefit this patient. Secondly, the physician considers how this experiment can benefit future patients. 