Jisho

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Full name
1. Ogino Kyuusaku (1882.3.25-1975.1.1)
Wikipedia definition
2. Kyusaku OginoKyusaku Ogino was a Japanese doctor specializing in obstetrics and gynecology. His natural father's family name was Nakamura, but Kyusaku was adopted by the Ogino family in 1901. Ogino studied infertility and developed a method to estimate the fertile period of the menstrual cycle based on the length of a woman's past cycles. This knowledge could be used by couples seeking pregnancy to time intercourse so as to maximize the chances of conception.
Read “Kyusaku Ogino” on English Wikipedia
Read “荻野久作” on Japanese Wikipedia
Read “Kyusaku Ogino” on DBpedia

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