The American Cancer Society is a nationwide voluntary health organization dedicated to eliminating cancer. Established in 1913, the society is organized into six geographical regions of both medical and lay volunteers operating in more than 250 Regional offices throughout the United States.

The American Medical Association, founded in 1847 and incorporated in 1897, is the largest association of physicians—both MDs and DOs—and medical students in the United States. The AMA's stated mission is "to promote the art and science of medicine and the betterment of public health."

The American Society of Clinical Oncology is the world’s leading professional organization representing physicians of all oncology sub-specialties who care for people with cancer.

The American Society of Hematology is a professional organization representing hematologists. It was founded in 1958. Its annual meeting is held in December of every year and has attracted more than 30,000 attendees.

The National Cancer Institute coordinates the United States National Cancer Program and is part of the National Institutes of Health, which is one of eleven agencies that are part of the U.S. Department of Health and Human Services

Trusted, compassionate information for people with cancer and their families and caregivers, from the American Society of Clinical Oncology (ASCO), the voice of the world’s cancer physicians and oncology professionals

The Centers for Disease Control and Prevention is the leading national public health institute of the United States. The CDC is a United States federal agency under the Department of Health and Human Services.

Chemotherapy Drug Information, Side Effects, Health and Wellness, and Resources for cancer patients and caregivers before, during and after cancer treatment

Drugs.com is an online pharmaceutical encyclopedia that provides drug information for consumers and healthcare professionals, primarily in the United States