| Initials | Definition |
| aa | Amino acid |
| ADN | Deoxyribonucleic acid |
| ARN | Ribonucleic acid |
| EDTA | Ethylenediaminetetraacetic acid |
| FVIII | Factor VIII |
| FIX | Factor IX |
| FvW | Von Willebrand factor |
| HAMSTeRS | The Haemophilia A Mutation, Structure, Test and Resource Site |
| INV1 | Intron-1 inversion |
| INV22 | Intron-22 inversion |
| ITI | Immunetolerance |
| Kb | Kilobase |
| Pb | Base pair |
| PCR | Polymerase chain reaction |
| BU | Bethesda units |
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