The diagnostic value of vaginal smears in carcinoma of the uterus.

The first cytopathology test, smear diagnosis of carcinoma of the cervix: the "Pap" test. Papanicolaou first reported in 1928 that he could recognize cancer cells (Proc. Third Race Betterment Conf., p. 528) but the importance of his findings was not generally accepted and he abandoned the work for some years.