| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Lead isotope | Is a | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| Lead measurement | Has measured component | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| Lead neuropathy | Causative agent | True | Lead | Inferred relationship | Existential restriction modifier | 1 | 
| Chronic lead nephropathy | Causative agent | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| Saturnine nephropathy | Causative agent | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| Gout caused by lead | Causative agent | True | Lead | Inferred relationship | Existential restriction modifier | 2 | 
| Poisoning caused by anti-infective compound of lead | Causative agent | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| Lead screening, blood | Has measured component | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| Anemia caused by lead | Causative agent | True | Lead | Inferred relationship | Existential restriction modifier | 3 | 
| Lead measurement, quantitative | Has measured component | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| Toxic encephalopathy caused by lead | Causative agent | True | Lead | Inferred relationship | Existential restriction modifier | 1 | 
| Blue line on gingivae | Causative agent | True | Lead | Inferred relationship | Existential restriction modifier | 1 | 
| Lead measurement, quantitative, urine | Has measured component | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| Toxic effect of lead dioxide | Causative agent | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| Toxic effect of lead salt | Causative agent | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| Lead screening, urine | Has measured component | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| Lead measurement, quantitative, blood | Has measured component | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| Lead screening | Has measured component | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| [EDTA] Lead-induced nephropathy associated with renal failure | Causative agent | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| Lead measurement | Component | True | Lead | Inferred relationship | Existential restriction modifier | 1 | 
| Lead screening, blood | Component | True | Lead | Inferred relationship | Existential restriction modifier | 2 | 
| Lead measurement, quantitative | Component | True | Lead | Inferred relationship | Existential restriction modifier | 3 | 
| Lead measurement, quantitative, urine | Component | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| Lead screening, urine | Component | True | Lead | Inferred relationship | Existential restriction modifier | 2 | 
| Lead measurement, quantitative, blood | Component | True | Lead | Inferred relationship | Existential restriction modifier | 2 | 
| Lead screening | Component | True | Lead | Inferred relationship | Existential restriction modifier | 1 | 
| Lead 12x tablet | Has active ingredient | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| 24 hour urine lead output | Component | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| Medicinal product containing lead compound and acting as antiinfective agent (product) | Has active ingredient | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| Lead analyte | Is a | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| On examination - gums - blue line | Causative agent | False | Lead | Inferred relationship | Existential restriction modifier | 4 | 
| Total lead | Is a | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| Lead electrolyte | Is a | True | Lead | Inferred relationship | Existential restriction modifier |  | 
| Nephropathy caused by lead | Causative agent | False | Lead | Inferred relationship | Existential restriction modifier | 1 | 
| Exposure to lead | Causative agent | True | Lead | Inferred relationship | Existential restriction modifier | 1 | 
| Lead measurement, quantitative, urine | Component | True | Lead | Inferred relationship | Existential restriction modifier | 1 | 
| 24 hour urine lead output | Component | True | Lead | Inferred relationship | Existential restriction modifier | 1 | 
| Chronic lead nephropathy | Causative agent | False | Lead | Inferred relationship | Existential restriction modifier | 2 | 
| Chronic lead nephropathy | Causative agent | False | Lead | Inferred relationship | Existential restriction modifier | 1 | 
| Saturnine nephropathy | Causative agent | False | Lead | Inferred relationship | Existential restriction modifier | 2 | 
| Saturnine nephropathy | Causative agent | False | Lead | Inferred relationship | Existential restriction modifier | 1 | 
| Chronic gout caused by lead | Causative agent | True | Lead | Inferred relationship | Existential restriction modifier | 1 | 
| Monoarticular chronic gout caused by lead | Causative agent | True | Lead | Inferred relationship | Existential restriction modifier | 5 | 
| Monoarticular acute gout caused by lead | Causative agent | True | Lead | Inferred relationship | Existential restriction modifier | 2 | 
| Acute gout caused by lead | Causative agent | True | Lead | Inferred relationship | Existential restriction modifier | 3 | 
| Polyarticular acute gout caused by lead | Causative agent | True | Lead | Inferred relationship | Existential restriction modifier | 2 | 
| Polyarticular chronic gout caused by lead | Causative agent | True | Lead | Inferred relationship | Existential restriction modifier | 1 | 
| Polyarticular acute gout caused by lead | Causative agent | True | Lead | Inferred relationship | Existential restriction modifier | 1 | 
| Polyarticular chronic gout caused by lead | Causative agent | True | Lead | Inferred relationship | Existential restriction modifier | 2 | 
| Cognitive impairment due to lead toxicity | Causative agent | True | Lead | Inferred relationship | Existential restriction modifier | 2 | 
| Peripheral neuropathy caused by lead | Causative agent | True | Lead | Inferred relationship | Existential restriction modifier | 1 | 
| Measurement of ratio of lead to creatinine in urine specimen (procedure) | Component | True | Lead | Inferred relationship | Existential restriction modifier | 3 | 
| Lead/creatinine ratio measurement | Component | True | Lead | Inferred relationship | Existential restriction modifier | 3 | 
| Lead output measurement | Component | True | Lead | Inferred relationship | Existential restriction modifier | 2 | 
| Lead/creatinine ratio measurement | Component | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| Lead output measurement | Component | False | Lead | Inferred relationship | Existential restriction modifier |  | 
| Measurement of ratio of lead to creatinine in urine specimen (procedure) | Component | False | Lead | Inferred relationship | Existential restriction modifier |  |