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The new specialty of thoracic surgery, which your association represents, and the specialty of neurologic surgery offer, possibly, the best examples of what might be called the modern tendency in surgery.
My father, in the early days when Charlie and I were his assistants, did the surgical work for a wide expanse of new country. He also found time for some general practice, and he had a wider knowledge of the medical science of his day than we can hope to acquire of our time. One of his achievements was the removal of approximately forty ovarian cysts, none of which weighed less than 20 pounds (9 kg.); one weighed 126 pounds (57.2 kg.). In those days, the cysts were not recognized until they were large, and the surgeon was not justified in operating in such a case until the family, the friends, and the neighbors of the patient could see
MAYO WJ. SPECIALIZATION IN SURGERY. Arch Surg. 1925;10(1):264-266. doi:10.1001/archsurg.1925.01120100276011