title: Principles of monitoring systems.
mesh_terms: D001769:Blood; D001795:Blood Pressure Determination; D002245:Carbon Dioxide / Q000097:blood; D004560:Electricity; D004562:Electrocardiography; D004566:Electrodes; D006813:Humidity; D006863:Hydrogen-Ion Concentration; D008365:Manometry; D008991:Monitoring, Physiologic; D010100:Oxygen / Q000097:blood; D013696:Temperature; D014159:Transducers
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen