In her 1924 lecture, "Progress in cancer problems", Chambers urged women doctors to treat their cancer patients with radium. In 1924–1925 she organised a group of female doctors in an effort to improve the use of radium in cancer treatment, especially of women, at the Royal Free Hospital, Elizabeth Garrett Anderson Hospital, South London Hospital and New Sussex Hospital in Brighton. The British Empire Cancer Campaign gave Chambers and the other researchers a large supply of radium.