The American Academy of Arts and Sciences (AAA&S) is one of the oldest learned societies in the United States.

The American Association for Cancer Research (AACR) is the world's oldest and largest professional association related to cancer research.

The American Association for the Advancement of Science (AAAS) is an American international non-profit organization with the stated mission of promoting cooperation among scientists, defending scientific freedom, encouraging scientific responsibility, and supporting scientific education and science outreach for the betterment of all humanity.

The American Cancer Society (ACS) is a nationwide non-profit organization dedicated to eliminating cancer.

The American Society for Cell Biology (ASCB) is a professional society that was founded in 1960.

The American Society for Clinical Investigation (ASCI), established in 1908, is one of the oldest and most respected medical honor societies in the United States.

Chemistry is a branch of science that studies matter and the changes it undergoes.

Chemotherapy is a widely used treatment method in the field of oncology, aimed at treating cancer by administering drugs that kill rapidly dividing cells.