Dr. Salk was an American medical researcher who developed the first  successful polio vaccine. Later in his career, he focused on cancer  research and made important contributions to understanding the immune  system's role in fighting cancer.

Dr. Susan Love is an American surgeon and breast cancer  specialist who is known for her advocacy work on behalf of women with  breast cancer. She has written several books on the topic, including  "Dr. Susan Love's Breast Book," which is considered a classic in the  field.

Dr. Harold Varmus is an American physician and virologist  who won the Nobel Prize in Physiology or Medicine in 1989 for his work  on the genetic basis of cancer. He has held several important positions  in government and academia, including serving as the director of the  National Institutes of Health and the president of Memorial  Sloan-Kettering Cancer Center.

Dr. Elizabeth Blackburn is an Australian-American  biologist who won the Nobel Prize in Physiology or Medicine in 2009 for  her work on telomeres, the protective caps at the end of chromosomes  that play a role in cell aging and cancer. She is currently a professor  of biology and physiology at the University of California, San  Francisco.

Dr. Emil Frei III was an American oncologist who was  instrumental in developing combination chemotherapy treatments for  cancer. He served as the director of the National Cancer Institute and  the Dana-Farber Cancer Institute, and was a leading figure in the  development of the childhood leukemia treatment protocol that is still  in use today.

Dr. Brian Druker is an American oncologist who developed the  first targeted therapy for cancer, known as Gleevec, which  revolutionized the treatment of chronic myeloid leukemia. He is  currently the director of the Knight Cancer Institute at Oregon Health  & Science University.

Dr. William Coley was an American surgeon who is sometimes  called the "father of immunotherapy" for his pioneering work in using  bacterial infections to stimulate the immune system to attack cancer  cells. His methods were controversial at the time, but have since been  shown to have some effectiveness in certain types of cancer. 

Dr. Mukherjee is an Indian-American oncologist who wrote the Pulitzer  Prize-winning book "The Emperor of All Maladies: A Biography of Cancer."  In addition to his work as a physician, he is a researcher at Columbia  University, where he studies the genetic basis of cancer.