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US4421764A Use of 9-anthroylcholine in the uterus to prevent pregnancy 失效
在子宫中使用9-蒽醌胆碱来预防怀孕

Use of 9-anthroylcholine in the uterus to prevent pregnancy
摘要:
The use of 9-anthroylcholine by injecting or introducing such drug directly into the uterus is disclosed as a means of preventing pregnancy after intercourse has occurred. Various means of introducing such drug are disclosed, such as by mixing such drug with jelly carriers, foam carriers, or paraffin oil.
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