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bn:16859012n
Noun Named Entity
SYL
No term available
EN
John Billings, KC*SG and his wife, Evelyn Livingston Billings, DCSG, were Australian physicians who pioneered the natural method of family planning known initially as the Ovulation Method, then the Ovulation Method Billings, specified by the WHO in 1978 and finally as the Billings Ovulation Method. Wikipedia
Relations
Sources
IS A
EN
couple
HAS PART
John Billings
EN
Evelyn Livingston Billings
COUNTRY OF CITIZENSHIP
EN
Australian

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