| http://www.w3.org/ns/prov#value | - Those of ordinary skill in the art will further appreciate, however, that modem dual-chamber pacemakers, with complex pacing algorithms and features such as rate- or activity-responsiveness, multiple chamber sensing and pacing, multiprogrammability, multi-modal operation, and the like, have responses to physiological events which may be difficult to analyze based solely upon the observations of a
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