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[Jan Amos Komenský--still with us].
Vopĕnka P. Vopĕnka P. Cas Lek Cesk. 1992 May 8;131(9):257-9. Cas Lek Cesk. 1992. PMID: 1638618 Czech. No abstract available.
[The family and the child].
Vopĕnka P. Vopĕnka P. Cas Lek Cesk. 1991 Feb 22;130(8):225-6. Cas Lek Cesk. 1991. PMID: 2025892 Czech. No abstract available.