| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Endoscopic brush biopsy of trachea | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Catheterization with bronchial brush biopsy | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Diagnostic fiberoptic endoscopic examination of lower respiratory tract and brush cytology of lesion of lower respiratory tract | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 2 | 
| Diagnostic fiberoptic endoscopic examination of lower respiratory tract with biopsy lavage and brush cytology of lesion of lower respiratory tract | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopic brush biopsy of small intestine | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopic brush biopsy of large intestine | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopy with brush biopsy and washing | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopic brush biopsy of jejunum | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopic brushings of gastrointestinal tract | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopic brush biopsy of rectum | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Diagnostic fiberoptic endoscopic examination of lower respiratory tract with lavage and brush cytology of lesion of lower respiratory tract | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 4 | 
| Endoscopic brush biopsy of stomach | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopic brush biopsy of duodenum | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopic brush biopsy of ileum | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopic brushings of gastrointestinal tract | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopic brush biopsy of jejunum | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopic brush biopsy of trachea | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Catheterization with bronchial brush biopsy | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopic brush biopsy of stomach | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopic brush biopsy of duodenum | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopic brush biopsy of large intestine | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopic brush biopsy of ileum | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopy with brush biopsy and washing | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopic brush biopsy of small intestine | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopic brush biopsy of rectum | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Brush biopsy | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopy and brush biopsy | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Bronchoscopy with brush biopsy | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Brush biopsy | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endoscopy and brush biopsy | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Brush biopsy of bile and pancreatic ducts | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Bronchoscopy with brush biopsy | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Brush biopsy of bile and pancreatic ducts | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 2 | 
| Brush biopsy of pancreatic duct | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Brush biopsy of bile duct | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Brush biopsy of bile duct | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Brush biopsy of pancreatic duct | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Brush biopsy of endocervix | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Brush biopsy of endocervix | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Diagnostic fiberoptic endoscopic examination of lower respiratory tract and brush cytology of lesion of lower respiratory tract | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 3 | 
| Diagnostic fiberoptic endoscopic examination of lower respiratory tract and brush cytology of lesion of lower respiratory tract | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Endotherapy cytology brush | Is a | True | Cytology brush, device | Inferred relationship | Existential restriction modifier |  | 
| General-purpose cytology brush | Is a | True | Cytology brush, device | Inferred relationship | Existential restriction modifier |  | 
| Cervical cytology brush | Is a | True | Cytology brush, device | Inferred relationship | Existential restriction modifier |  | 
| Endometrial cytology brush | Is a | True | Cytology brush, device | Inferred relationship | Existential restriction modifier |  | 
| Brush biopsy of bile duct using fluoroscopic guidance | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 3 | 
| Fiberoptic bronchoscopy with brush biopsy of bronchus | Using device | False | Cytology brush, device | Inferred relationship | Existential restriction modifier | 2 | 
| Cystourethroscopy with ureteral catheterization and brush biopsy of lower urinary tract | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 2 | 
| Fiberoptic bronchoscopy with brush biopsy of bronchus | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Fiberoptic endoscopy of lower respiratory tract with biopsy, lavage and brush cytology of lesion of lower respiratory tract | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Fiberoptic endoscopy of lower respiratory tract with lavage and brush cytology of lesion of lower respiratory tract | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 | 
| Fiberoptic endoscopy of lower respiratory tract and brush cytology of lesion of lower respiratory tract | Using device | True | Cytology brush, device | Inferred relationship | Existential restriction modifier | 1 |