According to the invention, a system for monitoring health information of a plurality of patients is disclosed. Included in the system are a data gathering device, a node, a wide area network, and a monitoring center. The data gathering device includes a respiration sensor, a wireless transmitter, and...http://www.google.es/patents/US6858006?utm_source=gb-gplus-sharePatente US6858006 - Cardiopulmonary monitoring
