| Abbreviation | Definition |
|---|---|
| AACI | American Anti Cancer Institute |
| AACR | American Association of Cancer Research |
| AACT | Active After Cancer Trial |
| ABCCC | Alabama Breast and Cervical Cancer Coalition |
| ABCF | American Breast Cancer Foundation |
| ABCG | Associa????o Brasileira de C??ncer G??strico |
| ABCG | Associação Brasileira de Câncer Gástrico |
| ABCR | Advances in Breast Cancer Research |
| ABCR | Australian Breast Cancer Research |
| ACC | Adrenocortical Cancer ACC |
| ACCAT | Adams County Cancer Awareness Team |
| ACCEP | Adaptive Cancer Care Essentials Program |
| ACCF | Australian Cervical Cancer Foundation |
| ACCN | Appalachia Community Cancer Network |
| ACCN | Australian Cancer Consumer Network |
| ACCO | American Childhood Cancer Organization |
| ACCRU | Academic and Community Cancer Research United |
| ACCRU | Atlantic Clinical Cancer Research Unit |
| ACDC | Advanced Centre for Detection of Cancer |
| ACEF | Absenger Cancer Education Foundation |