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HUMAN OVA FROM THE UTERINE TUBES

J. P. PRATT, M.D.; EDGAR ALLEN, Ph.D.; Q. U. NEWELL, M.D.; L. J. BLAND, A.B.
JAMA. 1929;93(11):834-837. doi:10.1001/jama.1929.02710110020005.
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Until recently the human ovum has escaped recognition and certain identification during the interval that begins with the rupture of a graafian follicle and ends with implantation of a fertilized ovum in the uterus. Several factors have been responsible for this, not the least of which is the small size of the object sought. Study of ova in the uterine tubes of mammals, especially in primates, i. e., in monkeys (Corner1 and Allen2), suggested the desirability of a similar search in the uterine tubes of women. For the purpose of this study, a cooperative group was formed to observe such suitable material as could be found at operation. As a result of this investigation, several specimens were recovered from human tubes. A preliminary report of the part of this investigation that deals with some of the specimens examined immediately after recovery has been published.3 A further detailed

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