| HP | Hypersensitivity Pneumonitis = Extrinsic Allergic Alveolitis |
|---|---|
| CBH | chronic benign hepatitis; cutaneous basophilic hypersensitivity |
| CHS | central hypoventilation syndrome; Chediak-Higashi syndrome; cholinesterase; chondroitin sulfate; com... |
| CSH | carotid sinus hypersensitivity; chronic subdural hematoma; combat support [army] hospital; cortical ... |
| DCH | delayed cutaneous hypersensitivity; Diploma in Child Health |