It was found that four male samples of craniofacial measurements were used twice in some analyses.  They are “Poljanen in Perejaslav (304 and 423 in Appendix 1),” “Poljanen in Černigov (305 and 422),” “Mikulčice (324 and 426),” and “Nové Zámky (326 and 428).”  This overlap of data may affect the results.  But the effect would be negligible in cases where the number of the samples used were large enough.  In any case, it is desired that more strict analyses will be carried out in the future.  [⇒ text]