| Label | Id | |
|---|---|---|
| C4BD | 13720 | |
| C4B deficiency | 13720 | |
| classic complement early component deficiency caused by mutation in C4B | 13720 | |
| complement component 4B deficiency | 13720 | |
| complement component 4B deficiency; C4BD | http://purl.obolibrary.org/obo/MONDO_0013720 | |
| complement component 4b deficiency | 13720 | |
| C4B classic complement early component deficiency | 13720 |