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November 10, 1956


JAMA. 1956;162(11):1077. doi:10.1001/jama.1956.02970280057023

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To the Editor:—  In the Sept. 15 issue of The Journal, page 229, in Foreign Letters, is a report entitled "Twins Born Twelve Days Apart." In Canada, last year, there was a report of a "second child born 48 days after twin" (Gazette, Montreal, March 22, 1955), which, it was alleged, was "the second largest interval between the birth of twins on record. The longest known delay was 56 days." Of interest, therefore, is an authentic case in the Talmud of an interval of three months, and both not only were born alive but later were among the rabbinical authorities cited in the Talmud and known as "Judah and Hezekiah, the sons of Hiyya." Also of interest is the opinion expressed in the Talmud on the still controversial question of superfetation versus superfecundation. The present consensus among embryologists is, I believe, that, where a second child has been born a

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