[A new combined method for the interruption of pregnancy during the 3rd and 5th lunar month].
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Abortion, Legal↗
Biomedical subjects
I Penev
Publications and source records attributed to I Penev.
[Vibro-dilatation of the cervical canal].
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Cervix Uteri↗
[Mechanical method of controlling synanthropic cockroaches].
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Adhesives↗