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ethynerone

Known as: 17-alpha-chloroethynyl-19-nor-4,9-androstadien-17-beta-ol-3-one, 19-nor-17-alpha-pregna-4,9-dien-20-yn-3-one, 21-chloro-17-hydroxy-, 21-chloro-17-hydroxy-19-nor-17 alpha-pregna-4,9-dien- 20-yn-3-one 
National Institutes of Health

Papers overview

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1978
1978
Of 172 beagle dogs administered oral contraceptive steroids for 5-7 years, 114 developed 1,156 nodules in the mammary gland… 
Review
1977
Review
1977
A study begun by a drug company and taken over by the FDA (Food and Drug Administration) in 1970 attempted to assess the role… 
1977
1977
In a study that has been in progress for 8 yr, ethynerone (MK 665) plus mestranol, chloroethynyi norgestrel (Wy‐4355) plus…