In 1927 the Children's Bureau of the Labor Department under the leadership of Grace Abbott announced the lowest infant mortality rate in the history of birth registration.

In 1925 Dr. John J. Abel purified and concentrated insulin, making it several times more effective than the common product then available.

New Jersey police confiscated twelve thousand fliers advertising magic powders for sale by voodoo doctor D. Alexander in August 1925.

In 1923 surgical assistant Dr. Duff S. Allen perfected the cardioscope, an instrument that made it possible to see inside a beating heart.

Edgar Allen and Edward A. Doisy in the 1920s pioneered in female sex hormone research. Their article, "An Ovarian Hormone," (JAMA, 81:819), was a milestone in the field.

Dr. William L. Bettison of the University of Michigan published an account of trichinosis infestation among Michigan football fans in Journal of the American Medical Association in...