The authors point out the importance of community-based healthcare in emerging economies. But access to patient medical records can be a problem in this setting, as paper records can be stored at a central facility that is remote from the point of care. This could lead to errors in diagnosis, medication and treatment. They propose a radio frequency identification (RFID)-based community e-health system where a patient is given a "passive" RFID card or an equivalent device (such as a stylized bracelet) and the community healthcare workers are each given a mobile RFID read/write device that can also access the central electronic medical record system. to be complex. They have studied how to implement this model in such a way that it is self-sustaining, rather than relying on recurring external funding, such as charitable support.