| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Cleaning area around nasogastric tube | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Replacing strapping on nasogastric tube | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Spigotting of nasogastric tube | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Checking position of nasogastric tube | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Nasogastric intubation for enteral infusion of concentrated nutritional substances | Using | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier |  | 
| Nasogastric tube maintenance | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Nasogastric tube aspiration | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Nasogastric tube removal | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Nasogastric tube irrigation | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Replacement of nasogastric tube | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Nasogastric intubation for enteral infusion of concentrated nutritional substances | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Insertion of nasogastric tube for intestinal decompression | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Insertion of nasogastric tube | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Nasogastric tube esophagitis | Associated with | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 2 | 
| Nasogastric tube irrigation | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Nasogastric feeding | Indirect device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Nasogastric feeding | Using device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Nasogastric tube aspiration | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 2 | 
| Nasogastric tube aspiration | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Nasogastric tube removal | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Nasogastric tube removal | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 2 | 
| Nasogastric intubation for enteral infusion of concentrated nutritional substances | Using device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 2 | 
| Replacement of nasogastric tube | Using device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 3 | 
| Nasogastric tube aspiration | Indirect device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Insertion of nasogastric tube for intestinal decompression | Using device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 2 | 
| Insertion of nasogastric tube | Using device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Checking position of nasogastric tube | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Cleaning area around nasogastric tube | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Spigotting of nasogastric tube | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Nasogastric tube maintenance | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Replacing strapping on nasogastric tube | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Insertion of nasogastric tube | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Nasogastric tube aspiration | Indirect device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Insertion of nasogastric tube for intestinal decompression | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Nasogastric feeding | Using device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Nasogastric intubation for enteral infusion of concentrated nutritional substances | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Replacement of nasogastric tube | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 2 | 
| Free drainage of stomach using nasogastric tube | Using device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Free drainage of stomach using nasogastric tube | Using device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Insertion of nasogastric feeding tube using endoscopy for upper gastrointestinal tract guidance | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Insertion of nasogastric feeding tube using endoscopy for upper gastrointestinal tract guidance | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Migration of nasogastric tube | Associated with | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Obstruction of nasogastric tube | Associated with | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Insertion of nasogastric feeding tube using fluoroscopic guidance | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 3 | 
| Nasogastric feeding tube | Is a | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier |  | 
| Checking position of nasogastric tube | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 2 | 
| Assessment for nasogastric tube insertion | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Nasogastric tube procedure using fluoroscopic guidance | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 2 | 
| Removal of nasogastric tube using fluoroscopic guidance | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 3 | 
| Attention to nasogastric tube | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Checking position of nasogastric tube using X-ray | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 2 | 
| Checking position of nasogastric tube using pH indicator testing strip | Direct device | True | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 2 | 
| Checking position of nasogastric tube using pH indicator testing strip | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Checking position of nasogastric tube using X-ray | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Removal of nasogastric tube using fluoroscopic guidance (procedure) | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 2 | 
| Removal of nasogastric tube using fluoroscopic guidance (procedure) | Direct device | False | Nasogastric tube, device | Inferred relationship | Existential restriction modifier | 3 |