ePRO-CTCAE application
OtherThe intervention will be the use of a mobile application for recording symptoms during cancer treatments. Patients in the intervention group will have the mobile application (e-PRO) installed on their smart phones on the first day of cancer treatment (chemotherapy or radiation therapy) and patients will be asked to use the application for 8 weeks. Every week, the application will ask patients to report symptoms they experienced during past 7 days using the pre-specified PRO-CTCAE questions for different types of cancer. Patients also can memo and save photos related symptoms using the application and patients can monitor the progression of the symptoms over time.