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This article describes a distributed e-healthcare system that uses the service-oriented architecture as a means of designing, implementing, and managing healthcare services. Medical monitoring devices worn by the patient, and frequent electronic communication between the patient and a nurse, can ensure that the prescribed treatment is being followed and that the patient is making good progress. The e-healthcare system described here can be readily extended to other healthcare professionals, including medical technicians who perform and report tests and analyses requested by physicians. In addition, the system can be interfaced to other applications that provide information on medications and dosages and warn of interactions between medications. Finally, it can be interfaced to drug-delivery devices that prompt and monitor the regular and timely consumption of medications.