著者

森本 正昭

出版者

日本医科大学医学会

雑誌

日本医科大学雑誌 (ISSN:00480444)

巻号頁・発行日

vol.23, no.9, pp.761-762, 1956

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The number of the rhythmical heart beats of the 29 abortives from 6 to 21 mm long early human embryos were in a first minute after birth 40-49 by 9 (31.3%), 20-29 by 6 (20.6%), the mean of all 29 embryos 41.5 per minute.