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[The course of labor and pregnancy in cases of twins].
Zrubek H, Zych M, Witort M, Popiolek J. Zrubek H, et al. Among authors: popiolek j. Ginekol Pol. 1976 Dec;47(12):1371-4. Ginekol Pol. 1976. PMID: 1034587 Polish. No abstract available.
[Coexistence of intra-and extrauterine pregnancy].
Doraczynński H, Popiolek J. Doraczynński H, et al. Among authors: popiolek j. Pol Tyg Lek. 1975 Oct 20;30(42):1751-2. Pol Tyg Lek. 1975. PMID: 1181569 Polish. No abstract available.