| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Pulmonary ventilation study, gaseous | Is a | Pulmonary ventilation study | true | Inferred relationship | Existential restriction modifier |  |  | 
| Pulmonary ventilation study, gaseous | Has intent | Diagnostic intent | false | Inferred relationship | Existential restriction modifier |  |  | 
| Pulmonary ventilation study, gaseous | Method | Investigation - action | false | Inferred relationship | Existential restriction modifier |  |  | 
| Pulmonary ventilation study, gaseous | Direct substance | Gaseous substance | false | Inferred relationship | Existential restriction modifier |  |  | 
| Pulmonary ventilation study, gaseous | Direct substance | Radioactive isotope | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Pulmonary ventilation study, gaseous | Procedure site | Lung structure | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Pulmonary ventilation study, gaseous | Method | Radionuclide imaging - action | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Pulmonary ventilation study, gaseous | Method | Introduction - action | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Pulmonary ventilation study, gaseous | Method | Radionuclide imaging - action | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Pulmonary ventilation study, gaseous | Method | Radionuclide imaging - action | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Pulmonary ventilation study, gaseous | Direct substance | Radioactive isotope | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Pulmonary ventilation study, gaseous | Direct substance | Radioactive isotope | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Pulmonary ventilation study, gaseous | Procedure site | Respiratory tract structure | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Pulmonary ventilation study, gaseous | Method | Radionuclide imaging - action | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Pulmonary ventilation study, gaseous | Method | Radionuclide imaging - action | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Pulmonary ventilation study, gaseous | Direct substance | Radioactive isotope | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Pulmonary ventilation study, gaseous | Direct substance | Radioactive isotope | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Pulmonary ventilation study, gaseous | Procedure site | Body system structure | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Pulmonary ventilation study, gaseous | Method | Radionuclide imaging - action | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Pulmonary ventilation study, gaseous | Method | Radionuclide imaging - action | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Pulmonary ventilation study, gaseous | Direct substance | Radioactive isotope | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Pulmonary ventilation study, gaseous | Direct substance | Radioactive isotope | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Pulmonary ventilation study, gaseous | Method | Radionuclide imaging - action | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Pulmonary ventilation study, gaseous | Method | Radionuclide imaging - action | false | Inferred relationship | Existential restriction modifier | 3 |  | 
| Pulmonary ventilation study, gaseous | Direct substance | Radioactive isotope | false | Inferred relationship | Existential restriction modifier | 2 |  | 
| Pulmonary ventilation study, gaseous | Direct substance | Radioactive isotope | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Pulmonary ventilation study, gaseous | Procedure site - Direct | Lung structure | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Pulmonary ventilation study, gaseous | Using substance | Radioactive isotope | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Pulmonary ventilation study, gaseous | Procedure site - Direct | Lung structure | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Pulmonary ventilation study, gaseous | Method | Radionuclide imaging - action | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Pulmonary ventilation study, gaseous | Using substance | Radioactive isotope | true | Inferred relationship | Existential restriction modifier | 1 |  |