| Abbreviation | Definition |
|---|---|
| GRACE | Global Research and Cancer Education |
| GRACE | Global Resource for Advancing Cancer Education |
| HBCR | Hospital Based Cancer Registries |
| HBCR | Hospital Based Cancer Registry |
| HBOC | Hereditary breastovarian cancer |
| HBOC | Hereditary Breast-Ovarian Cancer |
| HBOC | Hereditary breast–ovarian cancer |
| HCCP | Harvard Center For Cancer Prevention |
| HCCP | Hereditary Cancer in Clinical Practice |
| HCCP | Huntsman Cancer Care Program |
| HCMI | Human Cancer Model Initiative |
| HCMI | Human Cancer Models Initiative |
| HCRI | Harper Cancer Research Institute |
| HGCS | Hereditary Gynecologic Cancer Syndromes |
| HGPC | High Grade Prostate Cancer |
| HICF | Hatteras Island Cancer Foundation |
| HNC | Head and Neck Cancer |
| HNCR | Hungarian National Cancer Registry |
| HNSC | Head and Neck Squamous Cancer |
| HRBC | Hormone Responsive Breast Cancer |