1. Department of Anthropology and Human Genetics, Faculty of Sciences; Charles University, Viničná 7; Praha 2, 128 43 Czech Republic
2. Department of Software and Computer Science Education; Charles University, Faculty of Mathematics and Physics, Malostranské Náměstí 25; Praha 1, 118 00 Czech Republic
3. PACEA, UMR 5199, CNRS; Université de Bordeaux, Bâtiment B8, Allée Geoffroy Saint Hilaire, CS 50023; Talence, F-33400 France